Home / 15,569.60-21,480.84-9,517.68

Finding the Fourth Proportional to 15,569.60, 21,480.84 and 9,517.68

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Solution

The fourth proportional to 15,569.60, 21,480.84 and 9,517.68 is: 13,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.60 : 21,480.84 = 9,517.68 : x
  2. Step 2: Convert to fraction form
    15,569.60/21,480.84 = 9,517.68/x
  3. Step 3: Cross multiply
    15,569.60x = 21,480.84 × 9,517.68
  4. Step 4: Simplify right side
    15,569.60x = 204,447,761.25
  5. Step 5: Solve for x
    x = 204,447,761.25/15,569.60
  6. Step 6: Final answer
    x = 13,131.21

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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.