Home / 19,787.40-29,682.63-5,747.65

Finding the Fourth Proportional to 19,787.40, 29,682.63 and 5,747.65

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Solution

The fourth proportional to 19,787.40, 29,682.63 and 5,747.65 is: 8,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.40 : 29,682.63 = 5,747.65 : x
  2. Step 2: Convert to fraction form
    19,787.40/29,682.63 = 5,747.65/x
  3. Step 3: Cross multiply
    19,787.40x = 29,682.63 × 5,747.65
  4. Step 4: Simplify right side
    19,787.40x = 170,605,368.32
  5. Step 5: Solve for x
    x = 170,605,368.32/19,787.40
  6. Step 6: Final answer
    x = 8,621.92

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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.