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Finding the Fourth Proportional to 19,480.79, 26,882.15 and 10,983.22

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Solution

The fourth proportional to 19,480.79, 26,882.15 and 10,983.22 is: 15,156.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.79 : 26,882.15 = 10,983.22 : x
  2. Step 2: Convert to fraction form
    19,480.79/26,882.15 = 10,983.22/x
  3. Step 3: Cross multiply
    19,480.79x = 26,882.15 × 10,983.22
  4. Step 4: Simplify right side
    19,480.79x = 295,252,445.40
  5. Step 5: Solve for x
    x = 295,252,445.40/19,480.79
  6. Step 6: Final answer
    x = 15,156.08

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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.