Home / 13,240.76-19,869.30-8,861.36

Finding the Fourth Proportional to 13,240.76, 19,869.30 and 8,861.36

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Solution

The fourth proportional to 13,240.76, 19,869.30 and 8,861.36 is: 13,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.76 : 19,869.30 = 8,861.36 : x
  2. Step 2: Convert to fraction form
    13,240.76/19,869.30 = 8,861.36/x
  3. Step 3: Cross multiply
    13,240.76x = 19,869.30 × 8,861.36
  4. Step 4: Simplify right side
    13,240.76x = 176,069,020.25
  5. Step 5: Solve for x
    x = 176,069,020.25/13,240.76
  6. Step 6: Final answer
    x = 13,297.50

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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.