Home / 13,207.88-18,223.89-8,959.52

Finding the Fourth Proportional to 13,207.88, 18,223.89 and 8,959.52

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Solution

The fourth proportional to 13,207.88, 18,223.89 and 8,959.52 is: 12,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.88 : 18,223.89 = 8,959.52 : x
  2. Step 2: Convert to fraction form
    13,207.88/18,223.89 = 8,959.52/x
  3. Step 3: Cross multiply
    13,207.88x = 18,223.89 × 8,959.52
  4. Step 4: Simplify right side
    13,207.88x = 163,277,306.93
  5. Step 5: Solve for x
    x = 163,277,306.93/13,207.88
  6. Step 6: Final answer
    x = 12,362.11

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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.