Home / 15,691.40-23,649.91-13,526.28

Finding the Fourth Proportional to 15,691.40, 23,649.91 and 13,526.28

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Solution

The fourth proportional to 15,691.40, 23,649.91 and 13,526.28 is: 20,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691.40 : 23,649.91 = 13,526.28 : x
  2. Step 2: Convert to fraction form
    15,691.40/23,649.91 = 13,526.28/x
  3. Step 3: Cross multiply
    15,691.40x = 23,649.91 × 13,526.28
  4. Step 4: Simplify right side
    15,691.40x = 319,895,304.63
  5. Step 5: Solve for x
    x = 319,895,304.63/15,691.40
  6. Step 6: Final answer
    x = 20,386.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.