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Finding the Fourth Proportional to 8,017.68, 11,945.88 and 7,570.56

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Solution

The fourth proportional to 8,017.68, 11,945.88 and 7,570.56 is: 11,279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,017.68 : 11,945.88 = 7,570.56 : x
  2. Step 2: Convert to fraction form
    8,017.68/11,945.88 = 7,570.56/x
  3. Step 3: Cross multiply
    8,017.68x = 11,945.88 × 7,570.56
  4. Step 4: Simplify right side
    8,017.68x = 90,437,001.29
  5. Step 5: Solve for x
    x = 90,437,001.29/8,017.68
  6. Step 6: Final answer
    x = 11,279.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.