Home / 15,462.24-21,337.92-8,388.72

Finding the Fourth Proportional to 15,462.24, 21,337.92 and 8,388.72

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Solution

The fourth proportional to 15,462.24, 21,337.92 and 8,388.72 is: 11,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.24 : 21,337.92 = 8,388.72 : x
  2. Step 2: Convert to fraction form
    15,462.24/21,337.92 = 8,388.72/x
  3. Step 3: Cross multiply
    15,462.24x = 21,337.92 × 8,388.72
  4. Step 4: Simplify right side
    15,462.24x = 178,997,836.26
  5. Step 5: Solve for x
    x = 178,997,836.26/15,462.24
  6. Step 6: Final answer
    x = 11,576.45

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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.