Home / 18,901.99-28,363.97-10,469.35

Finding the Fourth Proportional to 18,901.99, 28,363.97 and 10,469.35

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Solution

The fourth proportional to 18,901.99, 28,363.97 and 10,469.35 is: 15,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.99 : 28,363.97 = 10,469.35 : x
  2. Step 2: Convert to fraction form
    18,901.99/28,363.97 = 10,469.35/x
  3. Step 3: Cross multiply
    18,901.99x = 28,363.97 × 10,469.35
  4. Step 4: Simplify right side
    18,901.99x = 296,952,329.32
  5. Step 5: Solve for x
    x = 296,952,329.32/18,901.99
  6. Step 6: Final answer
    x = 15,710.11

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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.