Home / 12,456.48-18,658.36-10,074.33

Finding the Fourth Proportional to 12,456.48, 18,658.36 and 10,074.33

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Solution

The fourth proportional to 12,456.48, 18,658.36 and 10,074.33 is: 15,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.48 : 18,658.36 = 10,074.33 : x
  2. Step 2: Convert to fraction form
    12,456.48/18,658.36 = 10,074.33/x
  3. Step 3: Cross multiply
    12,456.48x = 18,658.36 × 10,074.33
  4. Step 4: Simplify right side
    12,456.48x = 187,970,475.90
  5. Step 5: Solve for x
    x = 187,970,475.90/12,456.48
  6. Step 6: Final answer
    x = 15,090.18

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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.