Home / 10,260.48-15,377.76-8,867.28

Finding the Fourth Proportional to 10,260.48, 15,377.76 and 8,867.28

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Solution

The fourth proportional to 10,260.48, 15,377.76 and 8,867.28 is: 13,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.48 : 15,377.76 = 8,867.28 : x
  2. Step 2: Convert to fraction form
    10,260.48/15,377.76 = 8,867.28/x
  3. Step 3: Cross multiply
    10,260.48x = 15,377.76 × 8,867.28
  4. Step 4: Simplify right side
    10,260.48x = 136,358,903.69
  5. Step 5: Solve for x
    x = 136,358,903.69/10,260.48
  6. Step 6: Final answer
    x = 13,289.72

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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.