Home / 18,476.31-25,497.30-9,978.44

Finding the Fourth Proportional to 18,476.31, 25,497.30 and 9,978.44

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Solution

The fourth proportional to 18,476.31, 25,497.30 and 9,978.44 is: 13,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.31 : 25,497.30 = 9,978.44 : x
  2. Step 2: Convert to fraction form
    18,476.31/25,497.30 = 9,978.44/x
  3. Step 3: Cross multiply
    18,476.31x = 25,497.30 × 9,978.44
  4. Step 4: Simplify right side
    18,476.31x = 254,423,178.79
  5. Step 5: Solve for x
    x = 254,423,178.79/18,476.31
  6. Step 6: Final answer
    x = 13,770.24

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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.