Home / 9,122.29-12,573.61-7,230.54

Finding the Fourth Proportional to 9,122.29, 12,573.61 and 7,230.54

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Solution

The fourth proportional to 9,122.29, 12,573.61 and 7,230.54 is: 9,966.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.29 : 12,573.61 = 7,230.54 : x
  2. Step 2: Convert to fraction form
    9,122.29/12,573.61 = 7,230.54/x
  3. Step 3: Cross multiply
    9,122.29x = 12,573.61 × 7,230.54
  4. Step 4: Simplify right side
    9,122.29x = 90,913,990.05
  5. Step 5: Solve for x
    x = 90,913,990.05/9,122.29
  6. Step 6: Final answer
    x = 9,966.14

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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.