Home / 8,841.34-13,262.01-7,120.90

Finding the Fourth Proportional to 8,841.34, 13,262.01 and 7,120.90

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Solution

The fourth proportional to 8,841.34, 13,262.01 and 7,120.90 is: 10,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.34 : 13,262.01 = 7,120.90 : x
  2. Step 2: Convert to fraction form
    8,841.34/13,262.01 = 7,120.90/x
  3. Step 3: Cross multiply
    8,841.34x = 13,262.01 × 7,120.90
  4. Step 4: Simplify right side
    8,841.34x = 94,437,447.01
  5. Step 5: Solve for x
    x = 94,437,447.01/8,841.34
  6. Step 6: Final answer
    x = 10,681.35

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Double scale
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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.