Home / 19,787.48-29,681.22-7,946.66

Finding the Fourth Proportional to 19,787.48, 29,681.22 and 7,946.66

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Solution

The fourth proportional to 19,787.48, 29,681.22 and 7,946.66 is: 11,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.48 : 29,681.22 = 7,946.66 : x
  2. Step 2: Convert to fraction form
    19,787.48/29,681.22 = 7,946.66/x
  3. Step 3: Cross multiply
    19,787.48x = 29,681.22 × 7,946.66
  4. Step 4: Simplify right side
    19,787.48x = 235,866,563.73
  5. Step 5: Solve for x
    x = 235,866,563.73/19,787.48
  6. Step 6: Final answer
    x = 11,919.99

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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.