Home / 11,181.78-16,750.80-9,210.24

Finding the Fourth Proportional to 11,181.78, 16,750.80 and 9,210.24

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Solution

The fourth proportional to 11,181.78, 16,750.80 and 9,210.24 is: 13,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.78 : 16,750.80 = 9,210.24 : x
  2. Step 2: Convert to fraction form
    11,181.78/16,750.80 = 9,210.24/x
  3. Step 3: Cross multiply
    11,181.78x = 16,750.80 × 9,210.24
  4. Step 4: Simplify right side
    11,181.78x = 154,278,888.19
  5. Step 5: Solve for x
    x = 154,278,888.19/11,181.78
  6. Step 6: Final answer
    x = 13,797.35

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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.