Home / 8,917.69-12,306.52-4,938.87

Finding the Fourth Proportional to 8,917.69, 12,306.52 and 4,938.87

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Solution

The fourth proportional to 8,917.69, 12,306.52 and 4,938.87 is: 6,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.69 : 12,306.52 = 4,938.87 : x
  2. Step 2: Convert to fraction form
    8,917.69/12,306.52 = 4,938.87/x
  3. Step 3: Cross multiply
    8,917.69x = 12,306.52 × 4,938.87
  4. Step 4: Simplify right side
    8,917.69x = 60,780,277.74
  5. Step 5: Solve for x
    x = 60,780,277.74/8,917.69
  6. Step 6: Final answer
    x = 6,815.70

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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.