Home / 16,853.45-23,260.79-9,779.87

Finding the Fourth Proportional to 16,853.45, 23,260.79 and 9,779.87

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Solution

The fourth proportional to 16,853.45, 23,260.79 and 9,779.87 is: 13,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,853.45 : 23,260.79 = 9,779.87 : x
  2. Step 2: Convert to fraction form
    16,853.45/23,260.79 = 9,779.87/x
  3. Step 3: Cross multiply
    16,853.45x = 23,260.79 × 9,779.87
  4. Step 4: Simplify right side
    16,853.45x = 227,487,584.90
  5. Step 5: Solve for x
    x = 227,487,584.90/16,853.45
  6. Step 6: Final answer
    x = 13,497.99

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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.