Home / 12,565.45-18,838.41-7,292.35

Finding the Fourth Proportional to 12,565.45, 18,838.41 and 7,292.35

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Solution

The fourth proportional to 12,565.45, 18,838.41 and 7,292.35 is: 10,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.45 : 18,838.41 = 7,292.35 : x
  2. Step 2: Convert to fraction form
    12,565.45/18,838.41 = 7,292.35/x
  3. Step 3: Cross multiply
    12,565.45x = 18,838.41 × 7,292.35
  4. Step 4: Simplify right side
    12,565.45x = 137,376,279.16
  5. Step 5: Solve for x
    x = 137,376,279.16/12,565.45
  6. Step 6: Final answer
    x = 10,932.86

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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.