Home / 15,325.37-21,143.92-8,610.06

Finding the Fourth Proportional to 15,325.37, 21,143.92 and 8,610.06

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Solution

The fourth proportional to 15,325.37, 21,143.92 and 8,610.06 is: 11,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.37 : 21,143.92 = 8,610.06 : x
  2. Step 2: Convert to fraction form
    15,325.37/21,143.92 = 8,610.06/x
  3. Step 3: Cross multiply
    15,325.37x = 21,143.92 × 8,610.06
  4. Step 4: Simplify right side
    15,325.37x = 182,050,376.78
  5. Step 5: Solve for x
    x = 182,050,376.78/15,325.37
  6. Step 6: Final answer
    x = 11,879.02

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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.