Home / 16,355.81-22,571.31-9,281.48

Finding the Fourth Proportional to 16,355.81, 22,571.31 and 9,281.48

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Solution

The fourth proportional to 16,355.81, 22,571.31 and 9,281.48 is: 12,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,355.81 : 22,571.31 = 9,281.48 : x
  2. Step 2: Convert to fraction form
    16,355.81/22,571.31 = 9,281.48/x
  3. Step 3: Cross multiply
    16,355.81x = 22,571.31 × 9,281.48
  4. Step 4: Simplify right side
    16,355.81x = 209,495,049.48
  5. Step 5: Solve for x
    x = 209,495,049.48/16,355.81
  6. Step 6: Final answer
    x = 12,808.61

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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.