Home / 15,588.27-21,511.85-9,618.57

Finding the Fourth Proportional to 15,588.27, 21,511.85 and 9,618.57

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Solution

The fourth proportional to 15,588.27, 21,511.85 and 9,618.57 is: 13,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,588.27 : 21,511.85 = 9,618.57 : x
  2. Step 2: Convert to fraction form
    15,588.27/21,511.85 = 9,618.57/x
  3. Step 3: Cross multiply
    15,588.27x = 21,511.85 × 9,618.57
  4. Step 4: Simplify right side
    15,588.27x = 206,913,186.96
  5. Step 5: Solve for x
    x = 206,913,186.96/15,588.27
  6. Step 6: Final answer
    x = 13,273.65

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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.