Home / 8,119.72-11,207.38-4,585

Finding the Fourth Proportional to 8,119.72, 11,207.38 and 4,585

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Solution

The fourth proportional to 8,119.72, 11,207.38 and 4,585 is: 6,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.72 : 11,207.38 = 4,585 : x
  2. Step 2: Convert to fraction form
    8,119.72/11,207.38 = 4,585/x
  3. Step 3: Cross multiply
    8,119.72x = 11,207.38 × 4,585
  4. Step 4: Simplify right side
    8,119.72x = 51,385,837.30
  5. Step 5: Solve for x
    x = 51,385,837.30/8,119.72
  6. Step 6: Final answer
    x = 6,328.52

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Double scale
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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.