Home / 16,505.12-22,778.28-9,431.39

Finding the Fourth Proportional to 16,505.12, 22,778.28 and 9,431.39

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Solution

The fourth proportional to 16,505.12, 22,778.28 and 9,431.39 is: 13,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,505.12 : 22,778.28 = 9,431.39 : x
  2. Step 2: Convert to fraction form
    16,505.12/22,778.28 = 9,431.39/x
  3. Step 3: Cross multiply
    16,505.12x = 22,778.28 × 9,431.39
  4. Step 4: Simplify right side
    16,505.12x = 214,830,795.05
  5. Step 5: Solve for x
    x = 214,830,795.05/16,505.12
  6. Step 6: Final answer
    x = 13,016.01

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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.