Home / 16,220.16-22,380-9,846.60

Finding the Fourth Proportional to 16,220.16, 22,380 and 9,846.60

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Solution

The fourth proportional to 16,220.16, 22,380 and 9,846.60 is: 13,585.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.16 : 22,380 = 9,846.60 : x
  2. Step 2: Convert to fraction form
    16,220.16/22,380 = 9,846.60/x
  3. Step 3: Cross multiply
    16,220.16x = 22,380 × 9,846.60
  4. Step 4: Simplify right side
    16,220.16x = 220,366,908
  5. Step 5: Solve for x
    x = 220,366,908/16,220.16
  6. Step 6: Final answer
    x = 13,585.99

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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.