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Finding the Fourth Proportional to 9,001.55, 13,509.55 and 4,071.62

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Solution

The fourth proportional to 9,001.55, 13,509.55 and 4,071.62 is: 6,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.55 : 13,509.55 = 4,071.62 : x
  2. Step 2: Convert to fraction form
    9,001.55/13,509.55 = 4,071.62/x
  3. Step 3: Cross multiply
    9,001.55x = 13,509.55 × 4,071.62
  4. Step 4: Simplify right side
    9,001.55x = 55,005,753.97
  5. Step 5: Solve for x
    x = 55,005,753.97/9,001.55
  6. Step 6: Final answer
    x = 6,110.70

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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.