Home / 8,722.08-13,086.36-2,878.74

Finding the Fourth Proportional to 8,722.08, 13,086.36 and 2,878.74

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Solution

The fourth proportional to 8,722.08, 13,086.36 and 2,878.74 is: 4,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.08 : 13,086.36 = 2,878.74 : x
  2. Step 2: Convert to fraction form
    8,722.08/13,086.36 = 2,878.74/x
  3. Step 3: Cross multiply
    8,722.08x = 13,086.36 × 2,878.74
  4. Step 4: Simplify right side
    8,722.08x = 37,672,227.99
  5. Step 5: Solve for x
    x = 37,672,227.99/8,722.08
  6. Step 6: Final answer
    x = 4,319.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.