Home / 15,599.16-21,531.98-12,418.28

Finding the Fourth Proportional to 15,599.16, 21,531.98 and 12,418.28

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Solution

The fourth proportional to 15,599.16, 21,531.98 and 12,418.28 is: 17,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.16 : 21,531.98 = 12,418.28 : x
  2. Step 2: Convert to fraction form
    15,599.16/21,531.98 = 12,418.28/x
  3. Step 3: Cross multiply
    15,599.16x = 21,531.98 × 12,418.28
  4. Step 4: Simplify right side
    15,599.16x = 267,390,156.59
  5. Step 5: Solve for x
    x = 267,390,156.59/15,599.16
  6. Step 6: Final answer
    x = 17,141.32

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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.