Home / 10,119.06-13,964.23-5,642.86

Finding the Fourth Proportional to 10,119.06, 13,964.23 and 5,642.86

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Solution

The fourth proportional to 10,119.06, 13,964.23 and 5,642.86 is: 7,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.06 : 13,964.23 = 5,642.86 : x
  2. Step 2: Convert to fraction form
    10,119.06/13,964.23 = 5,642.86/x
  3. Step 3: Cross multiply
    10,119.06x = 13,964.23 × 5,642.86
  4. Step 4: Simplify right side
    10,119.06x = 78,798,194.90
  5. Step 5: Solve for x
    x = 78,798,194.90/10,119.06
  6. Step 6: Final answer
    x = 7,787.11

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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.