Home / 9,278.28-13,921.88-4,347.12

Finding the Fourth Proportional to 9,278.28, 13,921.88 and 4,347.12

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Solution

The fourth proportional to 9,278.28, 13,921.88 and 4,347.12 is: 6,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.28 : 13,921.88 = 4,347.12 : x
  2. Step 2: Convert to fraction form
    9,278.28/13,921.88 = 4,347.12/x
  3. Step 3: Cross multiply
    9,278.28x = 13,921.88 × 4,347.12
  4. Step 4: Simplify right side
    9,278.28x = 60,520,082.99
  5. Step 5: Solve for x
    x = 60,520,082.99/9,278.28
  6. Step 6: Final answer
    x = 6,522.77

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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.