Home / 8,278.52-11,423.58-6,710.36

Finding the Fourth Proportional to 8,278.52, 11,423.58 and 6,710.36

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Solution

The fourth proportional to 8,278.52, 11,423.58 and 6,710.36 is: 9,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.52 : 11,423.58 = 6,710.36 : x
  2. Step 2: Convert to fraction form
    8,278.52/11,423.58 = 6,710.36/x
  3. Step 3: Cross multiply
    8,278.52x = 11,423.58 × 6,710.36
  4. Step 4: Simplify right side
    8,278.52x = 76,656,334.29
  5. Step 5: Solve for x
    x = 76,656,334.29/8,278.52
  6. Step 6: Final answer
    x = 9,259.67

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Half scale
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Double scale
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Similar ratio
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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.