Home / 15,095.70-20,832.26-8,381.75

Finding the Fourth Proportional to 15,095.70, 20,832.26 and 8,381.75

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Solution

The fourth proportional to 15,095.70, 20,832.26 and 8,381.75 is: 11,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095.70 : 20,832.26 = 8,381.75 : x
  2. Step 2: Convert to fraction form
    15,095.70/20,832.26 = 8,381.75/x
  3. Step 3: Cross multiply
    15,095.70x = 20,832.26 × 8,381.75
  4. Step 4: Simplify right side
    15,095.70x = 174,610,649.18
  5. Step 5: Solve for x
    x = 174,610,649.18/15,095.70
  6. Step 6: Final answer
    x = 11,566.91

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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.