Home / 12,679.86-17,498.28-6,937.50

Finding the Fourth Proportional to 12,679.86, 17,498.28 and 6,937.50

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Solution

The fourth proportional to 12,679.86, 17,498.28 and 6,937.50 is: 9,573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.86 : 17,498.28 = 6,937.50 : x
  2. Step 2: Convert to fraction form
    12,679.86/17,498.28 = 6,937.50/x
  3. Step 3: Cross multiply
    12,679.86x = 17,498.28 × 6,937.50
  4. Step 4: Simplify right side
    12,679.86x = 121,394,317.50
  5. Step 5: Solve for x
    x = 121,394,317.50/12,679.86
  6. Step 6: Final answer
    x = 9,573.79

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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.