Home / 13,042.76-18,001.85-8,009.62

Finding the Fourth Proportional to 13,042.76, 18,001.85 and 8,009.62

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Solution

The fourth proportional to 13,042.76, 18,001.85 and 8,009.62 is: 11,055.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.76 : 18,001.85 = 8,009.62 : x
  2. Step 2: Convert to fraction form
    13,042.76/18,001.85 = 8,009.62/x
  3. Step 3: Cross multiply
    13,042.76x = 18,001.85 × 8,009.62
  4. Step 4: Simplify right side
    13,042.76x = 144,187,892.74
  5. Step 5: Solve for x
    x = 144,187,892.74/13,042.76
  6. Step 6: Final answer
    x = 11,055.02

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Half scale
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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.