Home / 19,878.92-27,433.15-10,926.36

Finding the Fourth Proportional to 19,878.92, 27,433.15 and 10,926.36

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Solution

The fourth proportional to 19,878.92, 27,433.15 and 10,926.36 is: 15,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.92 : 27,433.15 = 10,926.36 : x
  2. Step 2: Convert to fraction form
    19,878.92/27,433.15 = 10,926.36/x
  3. Step 3: Cross multiply
    19,878.92x = 27,433.15 × 10,926.36
  4. Step 4: Simplify right side
    19,878.92x = 299,744,445.52
  5. Step 5: Solve for x
    x = 299,744,445.52/19,878.92
  6. Step 6: Final answer
    x = 15,078.51

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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.