Home / 14,118.66-21,181.56-9,966.78

Finding the Fourth Proportional to 14,118.66, 21,181.56 and 9,966.78

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Solution

The fourth proportional to 14,118.66, 21,181.56 and 9,966.78 is: 14,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.66 : 21,181.56 = 9,966.78 : x
  2. Step 2: Convert to fraction form
    14,118.66/21,181.56 = 9,966.78/x
  3. Step 3: Cross multiply
    14,118.66x = 21,181.56 × 9,966.78
  4. Step 4: Simplify right side
    14,118.66x = 211,111,948.58
  5. Step 5: Solve for x
    x = 211,111,948.58/14,118.66
  6. Step 6: Final answer
    x = 14,952.69

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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.