Home / 15,250.21-21,045.40-8,536.46

Finding the Fourth Proportional to 15,250.21, 21,045.40 and 8,536.46

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Solution

The fourth proportional to 15,250.21, 21,045.40 and 8,536.46 is: 11,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.21 : 21,045.40 = 8,536.46 : x
  2. Step 2: Convert to fraction form
    15,250.21/21,045.40 = 8,536.46/x
  3. Step 3: Cross multiply
    15,250.21x = 21,045.40 × 8,536.46
  4. Step 4: Simplify right side
    15,250.21x = 179,653,215.28
  5. Step 5: Solve for x
    x = 179,653,215.28/15,250.21
  6. Step 6: Final answer
    x = 11,780.38

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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.