Home / 19,787.24-29,680.61-7,946.25

Finding the Fourth Proportional to 19,787.24, 29,680.61 and 7,946.25

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Solution

The fourth proportional to 19,787.24, 29,680.61 and 7,946.25 is: 11,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.24 : 29,680.61 = 7,946.25 : x
  2. Step 2: Convert to fraction form
    19,787.24/29,680.61 = 7,946.25/x
  3. Step 3: Cross multiply
    19,787.24x = 29,680.61 × 7,946.25
  4. Step 4: Simplify right side
    19,787.24x = 235,849,507.48
  5. Step 5: Solve for x
    x = 235,849,507.48/19,787.24
  6. Step 6: Final answer
    x = 11,919.28

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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.