Home / 9,116.76-12,582.75-5,339.70

Finding the Fourth Proportional to 9,116.76, 12,582.75 and 5,339.70

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Solution

The fourth proportional to 9,116.76, 12,582.75 and 5,339.70 is: 7,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.76 : 12,582.75 = 5,339.70 : x
  2. Step 2: Convert to fraction form
    9,116.76/12,582.75 = 5,339.70/x
  3. Step 3: Cross multiply
    9,116.76x = 12,582.75 × 5,339.70
  4. Step 4: Simplify right side
    9,116.76x = 67,188,110.18
  5. Step 5: Solve for x
    x = 67,188,110.18/9,116.76
  6. Step 6: Final answer
    x = 7,369.74

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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.