Home / 7,513.12-11,265.68-4,399.20

Finding the Fourth Proportional to 7,513.12, 11,265.68 and 4,399.20

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Solution

The fourth proportional to 7,513.12, 11,265.68 and 4,399.20 is: 6,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.12 : 11,265.68 = 4,399.20 : x
  2. Step 2: Convert to fraction form
    7,513.12/11,265.68 = 4,399.20/x
  3. Step 3: Cross multiply
    7,513.12x = 11,265.68 × 4,399.20
  4. Step 4: Simplify right side
    7,513.12x = 49,559,979.46
  5. Step 5: Solve for x
    x = 49,559,979.46/7,513.12
  6. Step 6: Final answer
    x = 6,596.46

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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.