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Finding the Fourth Proportional to 17,857.40, 26,786.10 and 4,711.10

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Solution

The fourth proportional to 17,857.40, 26,786.10 and 4,711.10 is: 7,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.40 : 26,786.10 = 4,711.10 : x
  2. Step 2: Convert to fraction form
    17,857.40/26,786.10 = 4,711.10/x
  3. Step 3: Cross multiply
    17,857.40x = 26,786.10 × 4,711.10
  4. Step 4: Simplify right side
    17,857.40x = 126,191,995.71
  5. Step 5: Solve for x
    x = 126,191,995.71/17,857.40
  6. Step 6: Final answer
    x = 7,066.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.