Home / 8,719.04-13,078.56-3,788.48

Finding the Fourth Proportional to 8,719.04, 13,078.56 and 3,788.48

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Solution

The fourth proportional to 8,719.04, 13,078.56 and 3,788.48 is: 5,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.04 : 13,078.56 = 3,788.48 : x
  2. Step 2: Convert to fraction form
    8,719.04/13,078.56 = 3,788.48/x
  3. Step 3: Cross multiply
    8,719.04x = 13,078.56 × 3,788.48
  4. Step 4: Simplify right side
    8,719.04x = 49,547,862.99
  5. Step 5: Solve for x
    x = 49,547,862.99/8,719.04
  6. Step 6: Final answer
    x = 5,682.72

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Similar ratio
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1.5x scale

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.