Home / 15,435.50-21,301.20-9,066.44

Finding the Fourth Proportional to 15,435.50, 21,301.20 and 9,066.44

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Solution

The fourth proportional to 15,435.50, 21,301.20 and 9,066.44 is: 12,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.50 : 21,301.20 = 9,066.44 : x
  2. Step 2: Convert to fraction form
    15,435.50/21,301.20 = 9,066.44/x
  3. Step 3: Cross multiply
    15,435.50x = 21,301.20 × 9,066.44
  4. Step 4: Simplify right side
    15,435.50x = 193,126,051.73
  5. Step 5: Solve for x
    x = 193,126,051.73/15,435.50
  6. Step 6: Final answer
    x = 12,511.81

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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.