Home / 14,178.42-19,566.45-7,891.02

Finding the Fourth Proportional to 14,178.42, 19,566.45 and 7,891.02

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Solution

The fourth proportional to 14,178.42, 19,566.45 and 7,891.02 is: 10,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.42 : 19,566.45 = 7,891.02 : x
  2. Step 2: Convert to fraction form
    14,178.42/19,566.45 = 7,891.02/x
  3. Step 3: Cross multiply
    14,178.42x = 19,566.45 × 7,891.02
  4. Step 4: Simplify right side
    14,178.42x = 154,399,248.28
  5. Step 5: Solve for x
    x = 154,399,248.28/14,178.42
  6. Step 6: Final answer
    x = 10,889.74

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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.