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Finding the Fourth Proportional to 15,460.80, 21,311.01 and 12,098.22

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Solution

The fourth proportional to 15,460.80, 21,311.01 and 12,098.22 is: 16,676.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.80 : 21,311.01 = 12,098.22 : x
  2. Step 2: Convert to fraction form
    15,460.80/21,311.01 = 12,098.22/x
  3. Step 3: Cross multiply
    15,460.80x = 21,311.01 × 12,098.22
  4. Step 4: Simplify right side
    15,460.80x = 257,825,287.40
  5. Step 5: Solve for x
    x = 257,825,287.40/15,460.80
  6. Step 6: Final answer
    x = 16,676.06

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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.