Home / 8,764.29-12,088.35-5,405.87

Finding the Fourth Proportional to 8,764.29, 12,088.35 and 5,405.87

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Solution

The fourth proportional to 8,764.29, 12,088.35 and 5,405.87 is: 7,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.29 : 12,088.35 = 5,405.87 : x
  2. Step 2: Convert to fraction form
    8,764.29/12,088.35 = 5,405.87/x
  3. Step 3: Cross multiply
    8,764.29x = 12,088.35 × 5,405.87
  4. Step 4: Simplify right side
    8,764.29x = 65,347,988.17
  5. Step 5: Solve for x
    x = 65,347,988.17/8,764.29
  6. Step 6: Final answer
    x = 7,456.16

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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.