Home / 10,286.56-14,195.60-5,570.88

Finding the Fourth Proportional to 10,286.56, 14,195.60 and 5,570.88

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Solution

The fourth proportional to 10,286.56, 14,195.60 and 5,570.88 is: 7,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.56 : 14,195.60 = 5,570.88 : x
  2. Step 2: Convert to fraction form
    10,286.56/14,195.60 = 5,570.88/x
  3. Step 3: Cross multiply
    10,286.56x = 14,195.60 × 5,570.88
  4. Step 4: Simplify right side
    10,286.56x = 79,081,984.13
  5. Step 5: Solve for x
    x = 79,081,984.13/10,286.56
  6. Step 6: Final answer
    x = 7,687.89

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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.