Home / 11,118.91-16,697.45-9,872.32

Finding the Fourth Proportional to 11,118.91, 16,697.45 and 9,872.32

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Solution

The fourth proportional to 11,118.91, 16,697.45 and 9,872.32 is: 14,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.91 : 16,697.45 = 9,872.32 : x
  2. Step 2: Convert to fraction form
    11,118.91/16,697.45 = 9,872.32/x
  3. Step 3: Cross multiply
    11,118.91x = 16,697.45 × 9,872.32
  4. Step 4: Simplify right side
    11,118.91x = 164,842,569.58
  5. Step 5: Solve for x
    x = 164,842,569.58/11,118.91
  6. Step 6: Final answer
    x = 14,825.43

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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.