Home / 18,817.98-25,967.40-10,318.74

Finding the Fourth Proportional to 18,817.98, 25,967.40 and 10,318.74

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Solution

The fourth proportional to 18,817.98, 25,967.40 and 10,318.74 is: 14,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.98 : 25,967.40 = 10,318.74 : x
  2. Step 2: Convert to fraction form
    18,817.98/25,967.40 = 10,318.74/x
  3. Step 3: Cross multiply
    18,817.98x = 25,967.40 × 10,318.74
  4. Step 4: Simplify right side
    18,817.98x = 267,950,849.08
  5. Step 5: Solve for x
    x = 267,950,849.08/18,817.98
  6. Step 6: Final answer
    x = 14,239.09

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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.