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Finding the Fourth Proportional to 12,463.69, 18,703.65 and 6,624.40

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Solution

The fourth proportional to 12,463.69, 18,703.65 and 6,624.40 is: 9,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.69 : 18,703.65 = 6,624.40 : x
  2. Step 2: Convert to fraction form
    12,463.69/18,703.65 = 6,624.40/x
  3. Step 3: Cross multiply
    12,463.69x = 18,703.65 × 6,624.40
  4. Step 4: Simplify right side
    12,463.69x = 123,900,459.06
  5. Step 5: Solve for x
    x = 123,900,459.06/12,463.69
  6. Step 6: Final answer
    x = 9,940.91

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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.