Home / 14,278.55-19,704.08-7,904.76

Finding the Fourth Proportional to 14,278.55, 19,704.08 and 7,904.76

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Solution

The fourth proportional to 14,278.55, 19,704.08 and 7,904.76 is: 10,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.55 : 19,704.08 = 7,904.76 : x
  2. Step 2: Convert to fraction form
    14,278.55/19,704.08 = 7,904.76/x
  3. Step 3: Cross multiply
    14,278.55x = 19,704.08 × 7,904.76
  4. Step 4: Simplify right side
    14,278.55x = 155,755,983.90
  5. Step 5: Solve for x
    x = 155,755,983.90/14,278.55
  6. Step 6: Final answer
    x = 10,908.39

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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.