Home / 9,480.20-13,082.78-5,288.45

Finding the Fourth Proportional to 9,480.20, 13,082.78 and 5,288.45

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Solution

The fourth proportional to 9,480.20, 13,082.78 and 5,288.45 is: 7,298.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,480.20 : 13,082.78 = 5,288.45 : x
  2. Step 2: Convert to fraction form
    9,480.20/13,082.78 = 5,288.45/x
  3. Step 3: Cross multiply
    9,480.20x = 13,082.78 × 5,288.45
  4. Step 4: Simplify right side
    9,480.20x = 69,187,575.70
  5. Step 5: Solve for x
    x = 69,187,575.70/9,480.20
  6. Step 6: Final answer
    x = 7,298.12

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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.