Home / 12,639.48-17,441.51-6,974.45

Finding the Fourth Proportional to 12,639.48, 17,441.51 and 6,974.45

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Solution

The fourth proportional to 12,639.48, 17,441.51 and 6,974.45 is: 9,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.48 : 17,441.51 = 6,974.45 : x
  2. Step 2: Convert to fraction form
    12,639.48/17,441.51 = 6,974.45/x
  3. Step 3: Cross multiply
    12,639.48x = 17,441.51 × 6,974.45
  4. Step 4: Simplify right side
    12,639.48x = 121,644,939.42
  5. Step 5: Solve for x
    x = 121,644,939.42/12,639.48
  6. Step 6: Final answer
    x = 9,624.20

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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.