Home / 19,149.49-28,724.27-9,290.22

Finding the Fourth Proportional to 19,149.49, 28,724.27 and 9,290.22

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Solution

The fourth proportional to 19,149.49, 28,724.27 and 9,290.22 is: 13,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.49 : 28,724.27 = 9,290.22 : x
  2. Step 2: Convert to fraction form
    19,149.49/28,724.27 = 9,290.22/x
  3. Step 3: Cross multiply
    19,149.49x = 28,724.27 × 9,290.22
  4. Step 4: Simplify right side
    19,149.49x = 266,854,787.64
  5. Step 5: Solve for x
    x = 266,854,787.64/19,149.49
  6. Step 6: Final answer
    x = 13,935.35

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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.