Home / 7,513.38-11,257.13-4,978.92

Finding the Fourth Proportional to 7,513.38, 11,257.13 and 4,978.92

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Solution

The fourth proportional to 7,513.38, 11,257.13 and 4,978.92 is: 7,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.38 : 11,257.13 = 4,978.92 : x
  2. Step 2: Convert to fraction form
    7,513.38/11,257.13 = 4,978.92/x
  3. Step 3: Cross multiply
    7,513.38x = 11,257.13 × 4,978.92
  4. Step 4: Simplify right side
    7,513.38x = 56,048,313.03
  5. Step 5: Solve for x
    x = 56,048,313.03/7,513.38
  6. Step 6: Final answer
    x = 7,459.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.