Home / 15,438.93-21,283.41-10,124.52

Finding the Fourth Proportional to 15,438.93, 21,283.41 and 10,124.52

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Solution

The fourth proportional to 15,438.93, 21,283.41 and 10,124.52 is: 13,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.93 : 21,283.41 = 10,124.52 : x
  2. Step 2: Convert to fraction form
    15,438.93/21,283.41 = 10,124.52/x
  3. Step 3: Cross multiply
    15,438.93x = 21,283.41 × 10,124.52
  4. Step 4: Simplify right side
    15,438.93x = 215,484,310.21
  5. Step 5: Solve for x
    x = 215,484,310.21/15,438.93
  6. Step 6: Final answer
    x = 13,957.20

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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.