Home / 12,842.88-17,713.44-9,317.76

Finding the Fourth Proportional to 12,842.88, 17,713.44 and 9,317.76

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Solution

The fourth proportional to 12,842.88, 17,713.44 and 9,317.76 is: 12,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.88 : 17,713.44 = 9,317.76 : x
  2. Step 2: Convert to fraction form
    12,842.88/17,713.44 = 9,317.76/x
  3. Step 3: Cross multiply
    12,842.88x = 17,713.44 × 9,317.76
  4. Step 4: Simplify right side
    12,842.88x = 165,049,582.69
  5. Step 5: Solve for x
    x = 165,049,582.69/12,842.88
  6. Step 6: Final answer
    x = 12,851.45

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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.