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Finding the Fourth Proportional to 10,329.87, 15,491.70 and 2,934.93

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Solution

The fourth proportional to 10,329.87, 15,491.70 and 2,934.93 is: 4,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.87 : 15,491.70 = 2,934.93 : x
  2. Step 2: Convert to fraction form
    10,329.87/15,491.70 = 2,934.93/x
  3. Step 3: Cross multiply
    10,329.87x = 15,491.70 × 2,934.93
  4. Step 4: Simplify right side
    10,329.87x = 45,467,055.08
  5. Step 5: Solve for x
    x = 45,467,055.08/10,329.87
  6. Step 6: Final answer
    x = 4,401.51

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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.