Home / 10,962.60-15,127.65-6,485.46

Finding the Fourth Proportional to 10,962.60, 15,127.65 and 6,485.46

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Solution

The fourth proportional to 10,962.60, 15,127.65 and 6,485.46 is: 8,949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.60 : 15,127.65 = 6,485.46 : x
  2. Step 2: Convert to fraction form
    10,962.60/15,127.65 = 6,485.46/x
  3. Step 3: Cross multiply
    10,962.60x = 15,127.65 × 6,485.46
  4. Step 4: Simplify right side
    10,962.60x = 98,109,768.97
  5. Step 5: Solve for x
    x = 98,109,768.97/10,962.60
  6. Step 6: Final answer
    x = 8,949.50

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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.