Home / 15,504.52-21,396.18-8,431.24

Finding the Fourth Proportional to 15,504.52, 21,396.18 and 8,431.24

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Solution

The fourth proportional to 15,504.52, 21,396.18 and 8,431.24 is: 11,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.52 : 21,396.18 = 8,431.24 : x
  2. Step 2: Convert to fraction form
    15,504.52/21,396.18 = 8,431.24/x
  3. Step 3: Cross multiply
    15,504.52x = 21,396.18 × 8,431.24
  4. Step 4: Simplify right side
    15,504.52x = 180,396,328.66
  5. Step 5: Solve for x
    x = 180,396,328.66/15,504.52
  6. Step 6: Final answer
    x = 11,635.08

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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.