Home / 16,889.28-23,315.04-9,813.12

Finding the Fourth Proportional to 16,889.28, 23,315.04 and 9,813.12

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Solution

The fourth proportional to 16,889.28, 23,315.04 and 9,813.12 is: 13,546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,889.28 : 23,315.04 = 9,813.12 : x
  2. Step 2: Convert to fraction form
    16,889.28/23,315.04 = 9,813.12/x
  3. Step 3: Cross multiply
    16,889.28x = 23,315.04 × 9,813.12
  4. Step 4: Simplify right side
    16,889.28x = 228,793,285.32
  5. Step 5: Solve for x
    x = 228,793,285.32/16,889.28
  6. Step 6: Final answer
    x = 13,546.66

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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.