Home / 15,446.48-21,316.10-8,372.88

Finding the Fourth Proportional to 15,446.48, 21,316.10 and 8,372.88

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Solution

The fourth proportional to 15,446.48, 21,316.10 and 8,372.88 is: 11,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.48 : 21,316.10 = 8,372.88 : x
  2. Step 2: Convert to fraction form
    15,446.48/21,316.10 = 8,372.88/x
  3. Step 3: Cross multiply
    15,446.48x = 21,316.10 × 8,372.88
  4. Step 4: Simplify right side
    15,446.48x = 178,477,105.50
  5. Step 5: Solve for x
    x = 178,477,105.50/15,446.48
  6. Step 6: Final answer
    x = 11,554.55

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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.