Home / 11,022.20-16,515.70-9,903.20

Finding the Fourth Proportional to 11,022.20, 16,515.70 and 9,903.20

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Solution

The fourth proportional to 11,022.20, 16,515.70 and 9,903.20 is: 14,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,022.20 : 16,515.70 = 9,903.20 : x
  2. Step 2: Convert to fraction form
    11,022.20/16,515.70 = 9,903.20/x
  3. Step 3: Cross multiply
    11,022.20x = 16,515.70 × 9,903.20
  4. Step 4: Simplify right side
    11,022.20x = 163,558,280.24
  5. Step 5: Solve for x
    x = 163,558,280.24/11,022.20
  6. Step 6: Final answer
    x = 14,838.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.