Home / 7,502.20-10,342.38-5,140.60

Finding the Fourth Proportional to 7,502.20, 10,342.38 and 5,140.60

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Solution

The fourth proportional to 7,502.20, 10,342.38 and 5,140.60 is: 7,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.20 : 10,342.38 = 5,140.60 : x
  2. Step 2: Convert to fraction form
    7,502.20/10,342.38 = 5,140.60/x
  3. Step 3: Cross multiply
    7,502.20x = 10,342.38 × 5,140.60
  4. Step 4: Simplify right side
    7,502.20x = 53,166,038.63
  5. Step 5: Solve for x
    x = 53,166,038.63/7,502.20
  6. Step 6: Final answer
    x = 7,086.73

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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.