Home / 9,140.91-12,614.45-4,949.16

Finding the Fourth Proportional to 9,140.91, 12,614.45 and 4,949.16

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Solution

The fourth proportional to 9,140.91, 12,614.45 and 4,949.16 is: 6,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.91 : 12,614.45 = 4,949.16 : x
  2. Step 2: Convert to fraction form
    9,140.91/12,614.45 = 4,949.16/x
  3. Step 3: Cross multiply
    9,140.91x = 12,614.45 × 4,949.16
  4. Step 4: Simplify right side
    9,140.91x = 62,430,943.73
  5. Step 5: Solve for x
    x = 62,430,943.73/9,140.91
  6. Step 6: Final answer
    x = 6,829.84

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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.