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Finding the Fourth Proportional to 11,875.61, 17,800.05 and 9,113.92

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Solution

The fourth proportional to 11,875.61, 17,800.05 and 9,113.92 is: 13,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.61 : 17,800.05 = 9,113.92 : x
  2. Step 2: Convert to fraction form
    11,875.61/17,800.05 = 9,113.92/x
  3. Step 3: Cross multiply
    11,875.61x = 17,800.05 × 9,113.92
  4. Step 4: Simplify right side
    11,875.61x = 162,228,221.37
  5. Step 5: Solve for x
    x = 162,228,221.37/11,875.61
  6. Step 6: Final answer
    x = 13,660.62

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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.