Home / 15,562.88-21,487.30-11,971.46

Finding the Fourth Proportional to 15,562.88, 21,487.30 and 11,971.46

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Solution

The fourth proportional to 15,562.88, 21,487.30 and 11,971.46 is: 16,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.88 : 21,487.30 = 11,971.46 : x
  2. Step 2: Convert to fraction form
    15,562.88/21,487.30 = 11,971.46/x
  3. Step 3: Cross multiply
    15,562.88x = 21,487.30 × 11,971.46
  4. Step 4: Simplify right side
    15,562.88x = 257,234,352.46
  5. Step 5: Solve for x
    x = 257,234,352.46/15,562.88
  6. Step 6: Final answer
    x = 16,528.71

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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.