Home / 15,485.77-23,221.36-5,618.15

Finding the Fourth Proportional to 15,485.77, 23,221.36 and 5,618.15

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Solution

The fourth proportional to 15,485.77, 23,221.36 and 5,618.15 is: 8,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485.77 : 23,221.36 = 5,618.15 : x
  2. Step 2: Convert to fraction form
    15,485.77/23,221.36 = 5,618.15/x
  3. Step 3: Cross multiply
    15,485.77x = 23,221.36 × 5,618.15
  4. Step 4: Simplify right side
    15,485.77x = 130,461,083.68
  5. Step 5: Solve for x
    x = 130,461,083.68/15,485.77
  6. Step 6: Final answer
    x = 8,424.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.