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Finding the Fourth Proportional to 10,005.80, 15,064.11 and 8,842.48

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Solution

The fourth proportional to 10,005.80, 15,064.11 and 8,842.48 is: 13,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.80 : 15,064.11 = 8,842.48 : x
  2. Step 2: Convert to fraction form
    10,005.80/15,064.11 = 8,842.48/x
  3. Step 3: Cross multiply
    10,005.80x = 15,064.11 × 8,842.48
  4. Step 4: Simplify right side
    10,005.80x = 133,204,091.39
  5. Step 5: Solve for x
    x = 133,204,091.39/10,005.80
  6. Step 6: Final answer
    x = 13,312.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.