Home / 13,253.19-19,865.21-8,859.75

Finding the Fourth Proportional to 13,253.19, 19,865.21 and 8,859.75

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Solution

The fourth proportional to 13,253.19, 19,865.21 and 8,859.75 is: 13,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.19 : 19,865.21 = 8,859.75 : x
  2. Step 2: Convert to fraction form
    13,253.19/19,865.21 = 8,859.75/x
  3. Step 3: Cross multiply
    13,253.19x = 19,865.21 × 8,859.75
  4. Step 4: Simplify right side
    13,253.19x = 176,000,750.00
  5. Step 5: Solve for x
    x = 176,000,750.00/13,253.19
  6. Step 6: Final answer
    x = 13,279.88

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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.