Home / 9,172.98-12,655.62-5,589.18

Finding the Fourth Proportional to 9,172.98, 12,655.62 and 5,589.18

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Solution

The fourth proportional to 9,172.98, 12,655.62 and 5,589.18 is: 7,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.98 : 12,655.62 = 5,589.18 : x
  2. Step 2: Convert to fraction form
    9,172.98/12,655.62 = 5,589.18/x
  3. Step 3: Cross multiply
    9,172.98x = 12,655.62 × 5,589.18
  4. Step 4: Simplify right side
    9,172.98x = 70,734,538.19
  5. Step 5: Solve for x
    x = 70,734,538.19/9,172.98
  6. Step 6: Final answer
    x = 7,711.18

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Double 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.