Home / 14,278.74-19,703.24-8,311.20

Finding the Fourth Proportional to 14,278.74, 19,703.24 and 8,311.20

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Solution

The fourth proportional to 14,278.74, 19,703.24 and 8,311.20 is: 11,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.74 : 19,703.24 = 8,311.20 : x
  2. Step 2: Convert to fraction form
    14,278.74/19,703.24 = 8,311.20/x
  3. Step 3: Cross multiply
    14,278.74x = 19,703.24 × 8,311.20
  4. Step 4: Simplify right side
    14,278.74x = 163,757,568.29
  5. Step 5: Solve for x
    x = 163,757,568.29/14,278.74
  6. Step 6: Final answer
    x = 11,468.63

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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.