Home / 11,117.72-16,689.72-4,549.16

Finding the Fourth Proportional to 11,117.72, 16,689.72 and 4,549.16

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Solution

The fourth proportional to 11,117.72, 16,689.72 and 4,549.16 is: 6,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.72 : 16,689.72 = 4,549.16 : x
  2. Step 2: Convert to fraction form
    11,117.72/16,689.72 = 4,549.16/x
  3. Step 3: Cross multiply
    11,117.72x = 16,689.72 × 4,549.16
  4. Step 4: Simplify right side
    11,117.72x = 75,924,206.64
  5. Step 5: Solve for x
    x = 75,924,206.64/11,117.72
  6. Step 6: Final answer
    x = 6,829.12

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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.