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Finding the Fourth Proportional to 12,555.08, 17,321.07 and 7,248.87

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Solution

The fourth proportional to 12,555.08, 17,321.07 and 7,248.87 is: 10,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.08 : 17,321.07 = 7,248.87 : x
  2. Step 2: Convert to fraction form
    12,555.08/17,321.07 = 7,248.87/x
  3. Step 3: Cross multiply
    12,555.08x = 17,321.07 × 7,248.87
  4. Step 4: Simplify right side
    12,555.08x = 125,558,184.69
  5. Step 5: Solve for x
    x = 125,558,184.69/12,555.08
  6. Step 6: Final answer
    x = 10,000.59

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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.