Home / 19,815.27-27,344.80-10,862.76

Finding the Fourth Proportional to 19,815.27, 27,344.80 and 10,862.76

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Solution

The fourth proportional to 19,815.27, 27,344.80 and 10,862.76 is: 14,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.27 : 27,344.80 = 10,862.76 : x
  2. Step 2: Convert to fraction form
    19,815.27/27,344.80 = 10,862.76/x
  3. Step 3: Cross multiply
    19,815.27x = 27,344.80 × 10,862.76
  4. Step 4: Simplify right side
    19,815.27x = 297,039,999.65
  5. Step 5: Solve for x
    x = 297,039,999.65/19,815.27
  6. Step 6: Final answer
    x = 14,990.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.