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Finding the Fourth Proportional to 8,158.05, 11,258.10 and 4,432.05

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Solution

The fourth proportional to 8,158.05, 11,258.10 and 4,432.05 is: 6,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.05 : 11,258.10 = 4,432.05 : x
  2. Step 2: Convert to fraction form
    8,158.05/11,258.10 = 4,432.05/x
  3. Step 3: Cross multiply
    8,158.05x = 11,258.10 × 4,432.05
  4. Step 4: Simplify right side
    8,158.05x = 49,896,462.11
  5. Step 5: Solve for x
    x = 49,896,462.11/8,158.05
  6. Step 6: Final answer
    x = 6,116.22

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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.