Home / 13,108.48-18,077.12-8,860.16

Finding the Fourth Proportional to 13,108.48, 18,077.12 and 8,860.16

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Solution

The fourth proportional to 13,108.48, 18,077.12 and 8,860.16 is: 12,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.48 : 18,077.12 = 8,860.16 : x
  2. Step 2: Convert to fraction form
    13,108.48/18,077.12 = 8,860.16/x
  3. Step 3: Cross multiply
    13,108.48x = 18,077.12 × 8,860.16
  4. Step 4: Simplify right side
    13,108.48x = 160,166,175.54
  5. Step 5: Solve for x
    x = 160,166,175.54/13,108.48
  6. Step 6: Final answer
    x = 12,218.52

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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.