Home / 15,523.26-21,421.50-8,808.48

Finding the Fourth Proportional to 15,523.26, 21,421.50 and 8,808.48

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Solution

The fourth proportional to 15,523.26, 21,421.50 and 8,808.48 is: 12,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.26 : 21,421.50 = 8,808.48 : x
  2. Step 2: Convert to fraction form
    15,523.26/21,421.50 = 8,808.48/x
  3. Step 3: Cross multiply
    15,523.26x = 21,421.50 × 8,808.48
  4. Step 4: Simplify right side
    15,523.26x = 188,690,810.28
  5. Step 5: Solve for x
    x = 188,690,810.28/15,523.26
  6. Step 6: Final answer
    x = 12,155.36

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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.