Home / 10,109.69-13,959.97-6,339.17

Finding the Fourth Proportional to 10,109.69, 13,959.97 and 6,339.17

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Solution

The fourth proportional to 10,109.69, 13,959.97 and 6,339.17 is: 8,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.69 : 13,959.97 = 6,339.17 : x
  2. Step 2: Convert to fraction form
    10,109.69/13,959.97 = 6,339.17/x
  3. Step 3: Cross multiply
    10,109.69x = 13,959.97 × 6,339.17
  4. Step 4: Simplify right side
    10,109.69x = 88,494,623.02
  5. Step 5: Solve for x
    x = 88,494,623.02/10,109.69
  6. Step 6: Final answer
    x = 8,753.45

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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.