Home / 19,545.28-26,971.86-11,161.78

Finding the Fourth Proportional to 19,545.28, 26,971.86 and 11,161.78

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Solution

The fourth proportional to 19,545.28, 26,971.86 and 11,161.78 is: 15,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,545.28 : 26,971.86 = 11,161.78 : x
  2. Step 2: Convert to fraction form
    19,545.28/26,971.86 = 11,161.78/x
  3. Step 3: Cross multiply
    19,545.28x = 26,971.86 × 11,161.78
  4. Step 4: Simplify right side
    19,545.28x = 301,053,967.51
  5. Step 5: Solve for x
    x = 301,053,967.51/19,545.28
  6. Step 6: Final answer
    x = 15,402.90

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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.