Home / 9,172.40-12,657.98-5,395.73

Finding the Fourth Proportional to 9,172.40, 12,657.98 and 5,395.73

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Solution

The fourth proportional to 9,172.40, 12,657.98 and 5,395.73 is: 7,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.40 : 12,657.98 = 5,395.73 : x
  2. Step 2: Convert to fraction form
    9,172.40/12,657.98 = 5,395.73/x
  3. Step 3: Cross multiply
    9,172.40x = 12,657.98 × 5,395.73
  4. Step 4: Simplify right side
    9,172.40x = 68,298,952.16
  5. Step 5: Solve for x
    x = 68,298,952.16/9,172.40
  6. Step 6: Final answer
    x = 7,446.14

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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.