Home / 16,420.82-22,660.75-9,347.24

Finding the Fourth Proportional to 16,420.82, 22,660.75 and 9,347.24

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Solution

The fourth proportional to 16,420.82, 22,660.75 and 9,347.24 is: 12,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,420.82 : 22,660.75 = 9,347.24 : x
  2. Step 2: Convert to fraction form
    16,420.82/22,660.75 = 9,347.24/x
  3. Step 3: Cross multiply
    16,420.82x = 22,660.75 × 9,347.24
  4. Step 4: Simplify right side
    16,420.82x = 211,815,355.53
  5. Step 5: Solve for x
    x = 211,815,355.53/16,420.82
  6. Step 6: Final answer
    x = 12,899.20

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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.