Home / 19,397.57-29,145.56-12,380.94

Finding the Fourth Proportional to 19,397.57, 29,145.56 and 12,380.94

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Solution

The fourth proportional to 19,397.57, 29,145.56 and 12,380.94 is: 18,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.57 : 29,145.56 = 12,380.94 : x
  2. Step 2: Convert to fraction form
    19,397.57/29,145.56 = 12,380.94/x
  3. Step 3: Cross multiply
    19,397.57x = 29,145.56 × 12,380.94
  4. Step 4: Simplify right side
    19,397.57x = 360,849,367.72
  5. Step 5: Solve for x
    x = 360,849,367.72/19,397.57
  6. Step 6: Final answer
    x = 18,602.82

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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.