Home / 10,980.48-15,149.12-8,463.36

Finding the Fourth Proportional to 10,980.48, 15,149.12 and 8,463.36

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Solution

The fourth proportional to 10,980.48, 15,149.12 and 8,463.36 is: 11,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.48 : 15,149.12 = 8,463.36 : x
  2. Step 2: Convert to fraction form
    10,980.48/15,149.12 = 8,463.36/x
  3. Step 3: Cross multiply
    10,980.48x = 15,149.12 × 8,463.36
  4. Step 4: Simplify right side
    10,980.48x = 128,212,456.24
  5. Step 5: Solve for x
    x = 128,212,456.24/10,980.48
  6. Step 6: Final answer
    x = 11,676.40

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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.