Home / 15,128.34-20,862.45-10,092.77

Finding the Fourth Proportional to 15,128.34, 20,862.45 and 10,092.77

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Solution

The fourth proportional to 15,128.34, 20,862.45 and 10,092.77 is: 13,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.34 : 20,862.45 = 10,092.77 : x
  2. Step 2: Convert to fraction form
    15,128.34/20,862.45 = 10,092.77/x
  3. Step 3: Cross multiply
    15,128.34x = 20,862.45 × 10,092.77
  4. Step 4: Simplify right side
    15,128.34x = 210,559,805.17
  5. Step 5: Solve for x
    x = 210,559,805.17/15,128.34
  6. Step 6: Final answer
    x = 13,918.24

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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.