Home / 11,156.16-15,380.10-10,811.10

Finding the Fourth Proportional to 11,156.16, 15,380.10 and 10,811.10

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Solution

The fourth proportional to 11,156.16, 15,380.10 and 10,811.10 is: 14,904.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.16 : 15,380.10 = 10,811.10 : x
  2. Step 2: Convert to fraction form
    11,156.16/15,380.10 = 10,811.10/x
  3. Step 3: Cross multiply
    11,156.16x = 15,380.10 × 10,811.10
  4. Step 4: Simplify right side
    11,156.16x = 166,275,799.11
  5. Step 5: Solve for x
    x = 166,275,799.11/11,156.16
  6. Step 6: Final answer
    x = 14,904.39

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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.