Home / 14,479.64-19,972.42-11,490.76

Finding the Fourth Proportional to 14,479.64, 19,972.42 and 11,490.76

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Solution

The fourth proportional to 14,479.64, 19,972.42 and 11,490.76 is: 15,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.64 : 19,972.42 = 11,490.76 : x
  2. Step 2: Convert to fraction form
    14,479.64/19,972.42 = 11,490.76/x
  3. Step 3: Cross multiply
    14,479.64x = 19,972.42 × 11,490.76
  4. Step 4: Simplify right side
    14,479.64x = 229,498,284.84
  5. Step 5: Solve for x
    x = 229,498,284.84/14,479.64
  6. Step 6: Final answer
    x = 15,849.72

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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.