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Finding the Fourth Proportional to 10,001.80, 13,792.11 and 8,590.15

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Solution

The fourth proportional to 10,001.80, 13,792.11 and 8,590.15 is: 11,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.80 : 13,792.11 = 8,590.15 : x
  2. Step 2: Convert to fraction form
    10,001.80/13,792.11 = 8,590.15/x
  3. Step 3: Cross multiply
    10,001.80x = 13,792.11 × 8,590.15
  4. Step 4: Simplify right side
    10,001.80x = 118,476,293.72
  5. Step 5: Solve for x
    x = 118,476,293.72/10,001.80
  6. Step 6: Final answer
    x = 11,845.50

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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.