Home / 9,071.10-12,518.46-5,487.21

Finding the Fourth Proportional to 9,071.10, 12,518.46 and 5,487.21

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Solution

The fourth proportional to 9,071.10, 12,518.46 and 5,487.21 is: 7,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,071.10 : 12,518.46 = 5,487.21 : x
  2. Step 2: Convert to fraction form
    9,071.10/12,518.46 = 5,487.21/x
  3. Step 3: Cross multiply
    9,071.10x = 12,518.46 × 5,487.21
  4. Step 4: Simplify right side
    9,071.10x = 68,691,418.90
  5. Step 5: Solve for x
    x = 68,691,418.90/9,071.10
  6. Step 6: Final answer
    x = 7,572.56

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Double scale
Find fourth proportional to 9,072.10, 12,519.84 and 5,488.21
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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.