Home / 8,139.29-11,232-4,602.42

Finding the Fourth Proportional to 8,139.29, 11,232 and 4,602.42

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Solution

The fourth proportional to 8,139.29, 11,232 and 4,602.42 is: 6,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.29 : 11,232 = 4,602.42 : x
  2. Step 2: Convert to fraction form
    8,139.29/11,232 = 4,602.42/x
  3. Step 3: Cross multiply
    8,139.29x = 11,232 × 4,602.42
  4. Step 4: Simplify right side
    8,139.29x = 51,694,381.44
  5. Step 5: Solve for x
    x = 51,694,381.44/8,139.29
  6. Step 6: Final answer
    x = 6,351.22

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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.