Home / 9,337.20-12,879.72-7,344.60

Finding the Fourth Proportional to 9,337.20, 12,879.72 and 7,344.60

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Solution

The fourth proportional to 9,337.20, 12,879.72 and 7,344.60 is: 10,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,337.20 : 12,879.72 = 7,344.60 : x
  2. Step 2: Convert to fraction form
    9,337.20/12,879.72 = 7,344.60/x
  3. Step 3: Cross multiply
    9,337.20x = 12,879.72 × 7,344.60
  4. Step 4: Simplify right side
    9,337.20x = 94,596,391.51
  5. Step 5: Solve for x
    x = 94,596,391.51/9,337.20
  6. Step 6: Final answer
    x = 10,131.13

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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.