Home / 10,962.77-15,127.49-6,485.65

Finding the Fourth Proportional to 10,962.77, 15,127.49 and 6,485.65

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Solution

The fourth proportional to 10,962.77, 15,127.49 and 6,485.65 is: 8,949.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.77 : 15,127.49 = 6,485.65 : x
  2. Step 2: Convert to fraction form
    10,962.77/15,127.49 = 6,485.65/x
  3. Step 3: Cross multiply
    10,962.77x = 15,127.49 × 6,485.65
  4. Step 4: Simplify right side
    10,962.77x = 98,111,583.91
  5. Step 5: Solve for x
    x = 98,111,583.91/10,962.77
  6. Step 6: Final answer
    x = 8,949.53

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Half scale
Find fourth proportional to 21,925.53, 30,254.99 and 12,971.30
Double scale
Find fourth proportional to 10,963.77, 15,128.87 and 6,486.65
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.