Home / 18,715.98-25,827.15-10,218.42

Finding the Fourth Proportional to 18,715.98, 25,827.15 and 10,218.42

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Solution

The fourth proportional to 18,715.98, 25,827.15 and 10,218.42 is: 14,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.98 : 25,827.15 = 10,218.42 : x
  2. Step 2: Convert to fraction form
    18,715.98/25,827.15 = 10,218.42/x
  3. Step 3: Cross multiply
    18,715.98x = 25,827.15 × 10,218.42
  4. Step 4: Simplify right side
    18,715.98x = 263,912,666.10
  5. Step 5: Solve for x
    x = 263,912,666.10/18,715.98
  6. Step 6: Final answer
    x = 14,100.93

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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.