Home / 16,490.26-22,760.69-9,420.78

Finding the Fourth Proportional to 16,490.26, 22,760.69 and 9,420.78

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Solution

The fourth proportional to 16,490.26, 22,760.69 and 9,420.78 is: 13,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.26 : 22,760.69 = 9,420.78 : x
  2. Step 2: Convert to fraction form
    16,490.26/22,760.69 = 9,420.78/x
  3. Step 3: Cross multiply
    16,490.26x = 22,760.69 × 9,420.78
  4. Step 4: Simplify right side
    16,490.26x = 214,423,453.14
  5. Step 5: Solve for x
    x = 214,423,453.14/16,490.26
  6. Step 6: Final answer
    x = 13,003.04

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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.