Home / 8,418.96-11,618.28-5,434.92

Finding the Fourth Proportional to 8,418.96, 11,618.28 and 5,434.92

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Solution

The fourth proportional to 8,418.96, 11,618.28 and 5,434.92 is: 7,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.96 : 11,618.28 = 5,434.92 : x
  2. Step 2: Convert to fraction form
    8,418.96/11,618.28 = 5,434.92/x
  3. Step 3: Cross multiply
    8,418.96x = 11,618.28 × 5,434.92
  4. Step 4: Simplify right side
    8,418.96x = 63,144,422.34
  5. Step 5: Solve for x
    x = 63,144,422.34/8,418.96
  6. Step 6: Final answer
    x = 7,500.26

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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.