Home / 16,991.12-25,488.24-6,603.68

Finding the Fourth Proportional to 16,991.12, 25,488.24 and 6,603.68

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Solution

The fourth proportional to 16,991.12, 25,488.24 and 6,603.68 is: 9,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.12 : 25,488.24 = 6,603.68 : x
  2. Step 2: Convert to fraction form
    16,991.12/25,488.24 = 6,603.68/x
  3. Step 3: Cross multiply
    16,991.12x = 25,488.24 × 6,603.68
  4. Step 4: Simplify right side
    16,991.12x = 168,316,180.72
  5. Step 5: Solve for x
    x = 168,316,180.72/16,991.12
  6. Step 6: Final answer
    x = 9,906.13

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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.