Home / 9,278.42-13,919.90-3,038.76

Finding the Fourth Proportional to 9,278.42, 13,919.90 and 3,038.76

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Solution

The fourth proportional to 9,278.42, 13,919.90 and 3,038.76 is: 4,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.42 : 13,919.90 = 3,038.76 : x
  2. Step 2: Convert to fraction form
    9,278.42/13,919.90 = 3,038.76/x
  3. Step 3: Cross multiply
    9,278.42x = 13,919.90 × 3,038.76
  4. Step 4: Simplify right side
    9,278.42x = 42,299,220.13
  5. Step 5: Solve for x
    x = 42,299,220.13/9,278.42
  6. Step 6: Final answer
    x = 4,558.88

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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.