Home / 18,815.49-25,964.85-10,317.18

Finding the Fourth Proportional to 18,815.49, 25,964.85 and 10,317.18

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Solution

The fourth proportional to 18,815.49, 25,964.85 and 10,317.18 is: 14,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.49 : 25,964.85 = 10,317.18 : x
  2. Step 2: Convert to fraction form
    18,815.49/25,964.85 = 10,317.18/x
  3. Step 3: Cross multiply
    18,815.49x = 25,964.85 × 10,317.18
  4. Step 4: Simplify right side
    18,815.49x = 267,884,031.12
  5. Step 5: Solve for x
    x = 267,884,031.12/18,815.49
  6. Step 6: Final answer
    x = 14,237.42

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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.