Home / 19,643.20-29,463.60-7,957.36

Finding the Fourth Proportional to 19,643.20, 29,463.60 and 7,957.36

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Solution

The fourth proportional to 19,643.20, 29,463.60 and 7,957.36 is: 11,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.20 : 29,463.60 = 7,957.36 : x
  2. Step 2: Convert to fraction form
    19,643.20/29,463.60 = 7,957.36/x
  3. Step 3: Cross multiply
    19,643.20x = 29,463.60 × 7,957.36
  4. Step 4: Simplify right side
    19,643.20x = 234,452,472.10
  5. Step 5: Solve for x
    x = 234,452,472.10/19,643.20
  6. Step 6: Final answer
    x = 11,935.55

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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.