Home / 13,031.80-19,557.14-8,861.92

Finding the Fourth Proportional to 13,031.80, 19,557.14 and 8,861.92

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Solution

The fourth proportional to 13,031.80, 19,557.14 and 8,861.92 is: 13,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.80 : 19,557.14 = 8,861.92 : x
  2. Step 2: Convert to fraction form
    13,031.80/19,557.14 = 8,861.92/x
  3. Step 3: Cross multiply
    13,031.80x = 19,557.14 × 8,861.92
  4. Step 4: Simplify right side
    13,031.80x = 173,313,810.11
  5. Step 5: Solve for x
    x = 173,313,810.11/13,031.80
  6. Step 6: Final answer
    x = 13,299.30

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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.