Home / 12,799.86-17,670.78-8,842.28

Finding the Fourth Proportional to 12,799.86, 17,670.78 and 8,842.28

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Solution

The fourth proportional to 12,799.86, 17,670.78 and 8,842.28 is: 12,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.86 : 17,670.78 = 8,842.28 : x
  2. Step 2: Convert to fraction form
    12,799.86/17,670.78 = 8,842.28/x
  3. Step 3: Cross multiply
    12,799.86x = 17,670.78 × 8,842.28
  4. Step 4: Simplify right side
    12,799.86x = 156,249,984.58
  5. Step 5: Solve for x
    x = 156,249,984.58/12,799.86
  6. Step 6: Final answer
    x = 12,207.16

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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.