Home / 18,787.92-25,925.76-10,404.24

Finding the Fourth Proportional to 18,787.92, 25,925.76 and 10,404.24

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Solution

The fourth proportional to 18,787.92, 25,925.76 and 10,404.24 is: 14,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.92 : 25,925.76 = 10,404.24 : x
  2. Step 2: Convert to fraction form
    18,787.92/25,925.76 = 10,404.24/x
  3. Step 3: Cross multiply
    18,787.92x = 25,925.76 × 10,404.24
  4. Step 4: Simplify right side
    18,787.92x = 269,737,829.22
  5. Step 5: Solve for x
    x = 269,737,829.22/18,787.92
  6. Step 6: Final answer
    x = 14,356.98

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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.