Home / 19,120.76-28,681.14-5,974.17

Finding the Fourth Proportional to 19,120.76, 28,681.14 and 5,974.17

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Solution

The fourth proportional to 19,120.76, 28,681.14 and 5,974.17 is: 8,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.76 : 28,681.14 = 5,974.17 : x
  2. Step 2: Convert to fraction form
    19,120.76/28,681.14 = 5,974.17/x
  3. Step 3: Cross multiply
    19,120.76x = 28,681.14 × 5,974.17
  4. Step 4: Simplify right side
    19,120.76x = 171,346,006.15
  5. Step 5: Solve for x
    x = 171,346,006.15/19,120.76
  6. Step 6: Final answer
    x = 8,961.26

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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.