Home / 15,213.36-20,996.70-8,842.88

Finding the Fourth Proportional to 15,213.36, 20,996.70 and 8,842.88

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Solution

The fourth proportional to 15,213.36, 20,996.70 and 8,842.88 is: 12,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.36 : 20,996.70 = 8,842.88 : x
  2. Step 2: Convert to fraction form
    15,213.36/20,996.70 = 8,842.88/x
  3. Step 3: Cross multiply
    15,213.36x = 20,996.70 × 8,842.88
  4. Step 4: Simplify right side
    15,213.36x = 185,671,298.50
  5. Step 5: Solve for x
    x = 185,671,298.50/15,213.36
  6. Step 6: Final answer
    x = 12,204.49

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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.