Home / 13,251.36-19,882.88-8,810.72

Finding the Fourth Proportional to 13,251.36, 19,882.88 and 8,810.72

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Solution

The fourth proportional to 13,251.36, 19,882.88 and 8,810.72 is: 13,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.36 : 19,882.88 = 8,810.72 : x
  2. Step 2: Convert to fraction form
    13,251.36/19,882.88 = 8,810.72/x
  3. Step 3: Cross multiply
    13,251.36x = 19,882.88 × 8,810.72
  4. Step 4: Simplify right side
    13,251.36x = 175,182,488.47
  5. Step 5: Solve for x
    x = 175,182,488.47/13,251.36
  6. Step 6: Final answer
    x = 13,219.96

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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.