Home / 12,330.32-18,535.58-9,891.82

Finding the Fourth Proportional to 12,330.32, 18,535.58 and 9,891.82

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Solution

The fourth proportional to 12,330.32, 18,535.58 and 9,891.82 is: 14,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.32 : 18,535.58 = 9,891.82 : x
  2. Step 2: Convert to fraction form
    12,330.32/18,535.58 = 9,891.82/x
  3. Step 3: Cross multiply
    12,330.32x = 18,535.58 × 9,891.82
  4. Step 4: Simplify right side
    12,330.32x = 183,350,478.82
  5. Step 5: Solve for x
    x = 183,350,478.82/12,330.32
  6. Step 6: Final answer
    x = 14,869.89

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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.