Home / 15,054.29-20,773.70-8,340.20

Finding the Fourth Proportional to 15,054.29, 20,773.70 and 8,340.20

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Solution

The fourth proportional to 15,054.29, 20,773.70 and 8,340.20 is: 11,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.29 : 20,773.70 = 8,340.20 : x
  2. Step 2: Convert to fraction form
    15,054.29/20,773.70 = 8,340.20/x
  3. Step 3: Cross multiply
    15,054.29x = 20,773.70 × 8,340.20
  4. Step 4: Simplify right side
    15,054.29x = 173,256,776.35
  5. Step 5: Solve for x
    x = 173,256,776.35/15,054.29
  6. Step 6: Final answer
    x = 11,508.80

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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.