Home / 12,801.85-19,207.28-6,564.80

Finding the Fourth Proportional to 12,801.85, 19,207.28 and 6,564.80

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Solution

The fourth proportional to 12,801.85, 19,207.28 and 6,564.80 is: 9,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801.85 : 19,207.28 = 6,564.80 : x
  2. Step 2: Convert to fraction form
    12,801.85/19,207.28 = 6,564.80/x
  3. Step 3: Cross multiply
    12,801.85x = 19,207.28 × 6,564.80
  4. Step 4: Simplify right side
    12,801.85x = 126,091,951.74
  5. Step 5: Solve for x
    x = 126,091,951.74/12,801.85
  6. Step 6: Final answer
    x = 9,849.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.