Home / 15,250.50-21,045.68-8,536.13

Finding the Fourth Proportional to 15,250.50, 21,045.68 and 8,536.13

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Solution

The fourth proportional to 15,250.50, 21,045.68 and 8,536.13 is: 11,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.50 : 21,045.68 = 8,536.13 : x
  2. Step 2: Convert to fraction form
    15,250.50/21,045.68 = 8,536.13/x
  3. Step 3: Cross multiply
    15,250.50x = 21,045.68 × 8,536.13
  4. Step 4: Simplify right side
    15,250.50x = 179,648,576.53
  5. Step 5: Solve for x
    x = 179,648,576.53/15,250.50
  6. Step 6: Final answer
    x = 11,779.85

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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.