Home / 19,815.05-27,344.59-10,862.53

Finding the Fourth Proportional to 19,815.05, 27,344.59 and 10,862.53

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Solution

The fourth proportional to 19,815.05, 27,344.59 and 10,862.53 is: 14,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.05 : 27,344.59 = 10,862.53 : x
  2. Step 2: Convert to fraction form
    19,815.05/27,344.59 = 10,862.53/x
  3. Step 3: Cross multiply
    19,815.05x = 27,344.59 × 10,862.53
  4. Step 4: Simplify right side
    19,815.05x = 297,031,429.21
  5. Step 5: Solve for x
    x = 297,031,429.21/19,815.05
  6. Step 6: Final answer
    x = 14,990.19

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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.