Home / 11,026.69-15,219.24-6,781.40

Finding the Fourth Proportional to 11,026.69, 15,219.24 and 6,781.40

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Solution

The fourth proportional to 11,026.69, 15,219.24 and 6,781.40 is: 9,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,026.69 : 15,219.24 = 6,781.40 : x
  2. Step 2: Convert to fraction form
    11,026.69/15,219.24 = 6,781.40/x
  3. Step 3: Cross multiply
    11,026.69x = 15,219.24 × 6,781.40
  4. Step 4: Simplify right side
    11,026.69x = 103,207,788.98
  5. Step 5: Solve for x
    x = 103,207,788.98/11,026.69
  6. Step 6: Final answer
    x = 9,359.82

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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.