Home / 8,424.76-11,624.55-5,279.14

Finding the Fourth Proportional to 8,424.76, 11,624.55 and 5,279.14

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Solution

The fourth proportional to 8,424.76, 11,624.55 and 5,279.14 is: 7,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.76 : 11,624.55 = 5,279.14 : x
  2. Step 2: Convert to fraction form
    8,424.76/11,624.55 = 5,279.14/x
  3. Step 3: Cross multiply
    8,424.76x = 11,624.55 × 5,279.14
  4. Step 4: Simplify right side
    8,424.76x = 61,367,626.89
  5. Step 5: Solve for x
    x = 61,367,626.89/8,424.76
  6. Step 6: Final answer
    x = 7,284.20

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Half scale
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Double scale
Find fourth proportional to 8,425.76, 11,625.93 and 5,280.14
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.