Home / 15,251.70-21,045.63-8,536.41

Finding the Fourth Proportional to 15,251.70, 21,045.63 and 8,536.41

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Solution

The fourth proportional to 15,251.70, 21,045.63 and 8,536.41 is: 11,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.70 : 21,045.63 = 8,536.41 : x
  2. Step 2: Convert to fraction form
    15,251.70/21,045.63 = 8,536.41/x
  3. Step 3: Cross multiply
    15,251.70x = 21,045.63 × 8,536.41
  4. Step 4: Simplify right side
    15,251.70x = 179,654,126.39
  5. Step 5: Solve for x
    x = 179,654,126.39/15,251.70
  6. Step 6: Final answer
    x = 11,779.29

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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.