Home / 8,278.76-11,423.04-5,292.32

Finding the Fourth Proportional to 8,278.76, 11,423.04 and 5,292.32

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Solution

The fourth proportional to 8,278.76, 11,423.04 and 5,292.32 is: 7,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.76 : 11,423.04 = 5,292.32 : x
  2. Step 2: Convert to fraction form
    8,278.76/11,423.04 = 5,292.32/x
  3. Step 3: Cross multiply
    8,278.76x = 11,423.04 × 5,292.32
  4. Step 4: Simplify right side
    8,278.76x = 60,454,383.05
  5. Step 5: Solve for x
    x = 60,454,383.05/8,278.76
  6. Step 6: Final answer
    x = 7,302.35

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Half scale
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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.