Home / 12,342.32-18,553.62-9,903.86

Finding the Fourth Proportional to 12,342.32, 18,553.62 and 9,903.86

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Solution

The fourth proportional to 12,342.32, 18,553.62 and 9,903.86 is: 14,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.32 : 18,553.62 = 9,903.86 : x
  2. Step 2: Convert to fraction form
    12,342.32/18,553.62 = 9,903.86/x
  3. Step 3: Cross multiply
    12,342.32x = 18,553.62 × 9,903.86
  4. Step 4: Simplify right side
    12,342.32x = 183,752,454.97
  5. Step 5: Solve for x
    x = 183,752,454.97/12,342.32
  6. Step 6: Final answer
    x = 14,888.00

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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.