Home / 15,139.56-22,710.89-5,787.45

Finding the Fourth Proportional to 15,139.56, 22,710.89 and 5,787.45

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Solution

The fourth proportional to 15,139.56, 22,710.89 and 5,787.45 is: 8,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.56 : 22,710.89 = 5,787.45 : x
  2. Step 2: Convert to fraction form
    15,139.56/22,710.89 = 5,787.45/x
  3. Step 3: Cross multiply
    15,139.56x = 22,710.89 × 5,787.45
  4. Step 4: Simplify right side
    15,139.56x = 131,438,111.39
  5. Step 5: Solve for x
    x = 131,438,111.39/15,139.56
  6. Step 6: Final answer
    x = 8,681.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.