Home / 14,178.92-19,565.70-7,891.88

Finding the Fourth Proportional to 14,178.92, 19,565.70 and 7,891.88

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Solution

The fourth proportional to 14,178.92, 19,565.70 and 7,891.88 is: 10,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.92 : 19,565.70 = 7,891.88 : x
  2. Step 2: Convert to fraction form
    14,178.92/19,565.70 = 7,891.88/x
  3. Step 3: Cross multiply
    14,178.92x = 19,565.70 × 7,891.88
  4. Step 4: Simplify right side
    14,178.92x = 154,410,156.52
  5. Step 5: Solve for x
    x = 154,410,156.52/14,178.92
  6. Step 6: Final answer
    x = 10,890.12

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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.