Home / 8,971.16-13,456.62-3,127.74

Finding the Fourth Proportional to 8,971.16, 13,456.62 and 3,127.74

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Solution

The fourth proportional to 8,971.16, 13,456.62 and 3,127.74 is: 4,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.16 : 13,456.62 = 3,127.74 : x
  2. Step 2: Convert to fraction form
    8,971.16/13,456.62 = 3,127.74/x
  3. Step 3: Cross multiply
    8,971.16x = 13,456.62 × 3,127.74
  4. Step 4: Simplify right side
    8,971.16x = 42,088,808.64
  5. Step 5: Solve for x
    x = 42,088,808.64/8,971.16
  6. Step 6: Final answer
    x = 4,691.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.