Home / 16,772.56-23,142.60-9,320.40

Finding the Fourth Proportional to 16,772.56, 23,142.60 and 9,320.40

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Solution

The fourth proportional to 16,772.56, 23,142.60 and 9,320.40 is: 12,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.56 : 23,142.60 = 9,320.40 : x
  2. Step 2: Convert to fraction form
    16,772.56/23,142.60 = 9,320.40/x
  3. Step 3: Cross multiply
    16,772.56x = 23,142.60 × 9,320.40
  4. Step 4: Simplify right side
    16,772.56x = 215,698,289.04
  5. Step 5: Solve for x
    x = 215,698,289.04/16,772.56
  6. Step 6: Final answer
    x = 12,860.19

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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.