Home / 9,398.85-12,970.52-5,149.92

Finding the Fourth Proportional to 9,398.85, 12,970.52 and 5,149.92

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Solution

The fourth proportional to 9,398.85, 12,970.52 and 5,149.92 is: 7,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.85 : 12,970.52 = 5,149.92 : x
  2. Step 2: Convert to fraction form
    9,398.85/12,970.52 = 5,149.92/x
  3. Step 3: Cross multiply
    9,398.85x = 12,970.52 × 5,149.92
  4. Step 4: Simplify right side
    9,398.85x = 66,797,140.36
  5. Step 5: Solve for x
    x = 66,797,140.36/9,398.85
  6. Step 6: Final answer
    x = 7,106.95

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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.