Home / 10,157.08-14,016.67-5,680.78

Finding the Fourth Proportional to 10,157.08, 14,016.67 and 5,680.78

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Solution

The fourth proportional to 10,157.08, 14,016.67 and 5,680.78 is: 7,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.08 : 14,016.67 = 5,680.78 : x
  2. Step 2: Convert to fraction form
    10,157.08/14,016.67 = 5,680.78/x
  3. Step 3: Cross multiply
    10,157.08x = 14,016.67 × 5,680.78
  4. Step 4: Simplify right side
    10,157.08x = 79,625,618.60
  5. Step 5: Solve for x
    x = 79,625,618.60/10,157.08
  6. Step 6: Final answer
    x = 7,839.42

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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.