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Finding the Fourth Proportional to 7,392.56, 10,120.10 and 7,339.82

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Solution

The fourth proportional to 7,392.56, 10,120.10 and 7,339.82 is: 10,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.56 : 10,120.10 = 7,339.82 : x
  2. Step 2: Convert to fraction form
    7,392.56/10,120.10 = 7,339.82/x
  3. Step 3: Cross multiply
    7,392.56x = 10,120.10 × 7,339.82
  4. Step 4: Simplify right side
    7,392.56x = 74,279,625.08
  5. Step 5: Solve for x
    x = 74,279,625.08/7,392.56
  6. Step 6: Final answer
    x = 10,047.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.