Home / 15,225.42-21,004.92-10,123.38

Finding the Fourth Proportional to 15,225.42, 21,004.92 and 10,123.38

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Solution

The fourth proportional to 15,225.42, 21,004.92 and 10,123.38 is: 13,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.42 : 21,004.92 = 10,123.38 : x
  2. Step 2: Convert to fraction form
    15,225.42/21,004.92 = 10,123.38/x
  3. Step 3: Cross multiply
    15,225.42x = 21,004.92 × 10,123.38
  4. Step 4: Simplify right side
    15,225.42x = 212,640,787.03
  5. Step 5: Solve for x
    x = 212,640,787.03/15,225.42
  6. Step 6: Final answer
    x = 13,966.17

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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.