Home / 18,342.25-25,312.85-9,959.29

Finding the Fourth Proportional to 18,342.25, 25,312.85 and 9,959.29

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Solution

The fourth proportional to 18,342.25, 25,312.85 and 9,959.29 is: 13,744.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.25 : 25,312.85 = 9,959.29 : x
  2. Step 2: Convert to fraction form
    18,342.25/25,312.85 = 9,959.29/x
  3. Step 3: Cross multiply
    18,342.25x = 25,312.85 × 9,959.29
  4. Step 4: Simplify right side
    18,342.25x = 252,097,964.08
  5. Step 5: Solve for x
    x = 252,097,964.08/18,342.25
  6. Step 6: Final answer
    x = 13,744.11

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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.