Home / 15,426.13-21,288.11-8,352.54

Finding the Fourth Proportional to 15,426.13, 21,288.11 and 8,352.54

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Solution

The fourth proportional to 15,426.13, 21,288.11 and 8,352.54 is: 11,526.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.13 : 21,288.11 = 8,352.54 : x
  2. Step 2: Convert to fraction form
    15,426.13/21,288.11 = 8,352.54/x
  3. Step 3: Cross multiply
    15,426.13x = 21,288.11 × 8,352.54
  4. Step 4: Simplify right side
    15,426.13x = 177,809,790.30
  5. Step 5: Solve for x
    x = 177,809,790.30/15,426.13
  6. Step 6: Final answer
    x = 11,526.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.