Home / 15,325.88-21,147.35-8,610.17

Finding the Fourth Proportional to 15,325.88, 21,147.35 and 8,610.17

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Solution

The fourth proportional to 15,325.88, 21,147.35 and 8,610.17 is: 11,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.88 : 21,147.35 = 8,610.17 : x
  2. Step 2: Convert to fraction form
    15,325.88/21,147.35 = 8,610.17/x
  3. Step 3: Cross multiply
    15,325.88x = 21,147.35 × 8,610.17
  4. Step 4: Simplify right side
    15,325.88x = 182,082,129.76
  5. Step 5: Solve for x
    x = 182,082,129.76/15,325.88
  6. Step 6: Final answer
    x = 11,880.70

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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.