Home / 8,719.28-13,060.86-4,263.54

Finding the Fourth Proportional to 8,719.28, 13,060.86 and 4,263.54

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Solution

The fourth proportional to 8,719.28, 13,060.86 and 4,263.54 is: 6,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.28 : 13,060.86 = 4,263.54 : x
  2. Step 2: Convert to fraction form
    8,719.28/13,060.86 = 4,263.54/x
  3. Step 3: Cross multiply
    8,719.28x = 13,060.86 × 4,263.54
  4. Step 4: Simplify right side
    8,719.28x = 55,685,499.04
  5. Step 5: Solve for x
    x = 55,685,499.04/8,719.28
  6. Step 6: Final answer
    x = 6,386.48

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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.