Home / 11,218.95-16,829.04-8,090.34

Finding the Fourth Proportional to 11,218.95, 16,829.04 and 8,090.34

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Solution

The fourth proportional to 11,218.95, 16,829.04 and 8,090.34 is: 12,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.95 : 16,829.04 = 8,090.34 : x
  2. Step 2: Convert to fraction form
    11,218.95/16,829.04 = 8,090.34/x
  3. Step 3: Cross multiply
    11,218.95x = 16,829.04 × 8,090.34
  4. Step 4: Simplify right side
    11,218.95x = 136,152,655.47
  5. Step 5: Solve for x
    x = 136,152,655.47/11,218.95
  6. Step 6: Final answer
    x = 12,135.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.