Home / 7,527.52-10,388.10-4,170.28

Finding the Fourth Proportional to 7,527.52, 10,388.10 and 4,170.28

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Solution

The fourth proportional to 7,527.52, 10,388.10 and 4,170.28 is: 5,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,527.52 : 10,388.10 = 4,170.28 : x
  2. Step 2: Convert to fraction form
    7,527.52/10,388.10 = 4,170.28/x
  3. Step 3: Cross multiply
    7,527.52x = 10,388.10 × 4,170.28
  4. Step 4: Simplify right side
    7,527.52x = 43,321,285.67
  5. Step 5: Solve for x
    x = 43,321,285.67/7,527.52
  6. Step 6: Final answer
    x = 5,755.05

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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.