Home / 9,309.42-12,847.02-5,117.70

Finding the Fourth Proportional to 9,309.42, 12,847.02 and 5,117.70

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Solution

The fourth proportional to 9,309.42, 12,847.02 and 5,117.70 is: 7,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.42 : 12,847.02 = 5,117.70 : x
  2. Step 2: Convert to fraction form
    9,309.42/12,847.02 = 5,117.70/x
  3. Step 3: Cross multiply
    9,309.42x = 12,847.02 × 5,117.70
  4. Step 4: Simplify right side
    9,309.42x = 65,747,194.25
  5. Step 5: Solve for x
    x = 65,747,194.25/9,309.42
  6. Step 6: Final answer
    x = 7,062.44

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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.