Home / 15,150.66-20,890.02-10,372.92

Finding the Fourth Proportional to 15,150.66, 20,890.02 and 10,372.92

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Solution

The fourth proportional to 15,150.66, 20,890.02 and 10,372.92 is: 14,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.66 : 20,890.02 = 10,372.92 : x
  2. Step 2: Convert to fraction form
    15,150.66/20,890.02 = 10,372.92/x
  3. Step 3: Cross multiply
    15,150.66x = 20,890.02 × 10,372.92
  4. Step 4: Simplify right side
    15,150.66x = 216,690,506.26
  5. Step 5: Solve for x
    x = 216,690,506.26/15,150.66
  6. Step 6: Final answer
    x = 14,302.38

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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.