Home / 15,462.24-21,337.65-8,388.60

Finding the Fourth Proportional to 15,462.24, 21,337.65 and 8,388.60

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Solution

The fourth proportional to 15,462.24, 21,337.65 and 8,388.60 is: 11,576.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.24 : 21,337.65 = 8,388.60 : x
  2. Step 2: Convert to fraction form
    15,462.24/21,337.65 = 8,388.60/x
  3. Step 3: Cross multiply
    15,462.24x = 21,337.65 × 8,388.60
  4. Step 4: Simplify right side
    15,462.24x = 178,993,010.79
  5. Step 5: Solve for x
    x = 178,993,010.79/15,462.24
  6. Step 6: Final answer
    x = 11,576.14

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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.