Home / 9,172.28-12,657.62-5,193.40

Finding the Fourth Proportional to 9,172.28, 12,657.62 and 5,193.40

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Solution

The fourth proportional to 9,172.28, 12,657.62 and 5,193.40 is: 7,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.28 : 12,657.62 = 5,193.40 : x
  2. Step 2: Convert to fraction form
    9,172.28/12,657.62 = 5,193.40/x
  3. Step 3: Cross multiply
    9,172.28x = 12,657.62 × 5,193.40
  4. Step 4: Simplify right side
    9,172.28x = 65,736,083.71
  5. Step 5: Solve for x
    x = 65,736,083.71/9,172.28
  6. Step 6: Final answer
    x = 7,166.82

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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.