Home / 8,989.55-12,405.29-5,634.17

Finding the Fourth Proportional to 8,989.55, 12,405.29 and 5,634.17

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Solution

The fourth proportional to 8,989.55, 12,405.29 and 5,634.17 is: 7,774.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.55 : 12,405.29 = 5,634.17 : x
  2. Step 2: Convert to fraction form
    8,989.55/12,405.29 = 5,634.17/x
  3. Step 3: Cross multiply
    8,989.55x = 12,405.29 × 5,634.17
  4. Step 4: Simplify right side
    8,989.55x = 69,893,484.59
  5. Step 5: Solve for x
    x = 69,893,484.59/8,989.55
  6. Step 6: Final answer
    x = 7,774.97

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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.