Home / 9,122.16-12,586.20-5,394.48

Finding the Fourth Proportional to 9,122.16, 12,586.20 and 5,394.48

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Solution

The fourth proportional to 9,122.16, 12,586.20 and 5,394.48 is: 7,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.16 : 12,586.20 = 5,394.48 : x
  2. Step 2: Convert to fraction form
    9,122.16/12,586.20 = 5,394.48/x
  3. Step 3: Cross multiply
    9,122.16x = 12,586.20 × 5,394.48
  4. Step 4: Simplify right side
    9,122.16x = 67,896,004.18
  5. Step 5: Solve for x
    x = 67,896,004.18/9,122.16
  6. Step 6: Final answer
    x = 7,442.97

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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.