Home / 15,040.33-20,755.95-8,325.77

Finding the Fourth Proportional to 15,040.33, 20,755.95 and 8,325.77

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Solution

The fourth proportional to 15,040.33, 20,755.95 and 8,325.77 is: 11,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.33 : 20,755.95 = 8,325.77 : x
  2. Step 2: Convert to fraction form
    15,040.33/20,755.95 = 8,325.77/x
  3. Step 3: Cross multiply
    15,040.33x = 20,755.95 × 8,325.77
  4. Step 4: Simplify right side
    15,040.33x = 172,809,130.83
  5. Step 5: Solve for x
    x = 172,809,130.83/15,040.33
  6. Step 6: Final answer
    x = 11,489.72

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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.