Home / 12,869.14-19,266.15-7,923.94

Finding the Fourth Proportional to 12,869.14, 19,266.15 and 7,923.94

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Solution

The fourth proportional to 12,869.14, 19,266.15 and 7,923.94 is: 11,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.14 : 19,266.15 = 7,923.94 : x
  2. Step 2: Convert to fraction form
    12,869.14/19,266.15 = 7,923.94/x
  3. Step 3: Cross multiply
    12,869.14x = 19,266.15 × 7,923.94
  4. Step 4: Simplify right side
    12,869.14x = 152,663,816.63
  5. Step 5: Solve for x
    x = 152,663,816.63/12,869.14
  6. Step 6: Final answer
    x = 11,862.78

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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.