Home / 12,242.64-16,875.72-10,249.68

Finding the Fourth Proportional to 12,242.64, 16,875.72 and 10,249.68

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Solution

The fourth proportional to 12,242.64, 16,875.72 and 10,249.68 is: 14,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.64 : 16,875.72 = 10,249.68 : x
  2. Step 2: Convert to fraction form
    12,242.64/16,875.72 = 10,249.68/x
  3. Step 3: Cross multiply
    12,242.64x = 16,875.72 × 10,249.68
  4. Step 4: Simplify right side
    12,242.64x = 172,970,729.77
  5. Step 5: Solve for x
    x = 172,970,729.77/12,242.64
  6. Step 6: Final answer
    x = 14,128.55

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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.