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Finding the Fourth Proportional to 6,600.12, 9,901.71 and 1,920.24

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Solution

The fourth proportional to 6,600.12, 9,901.71 and 1,920.24 is: 2,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.12 : 9,901.71 = 1,920.24 : x
  2. Step 2: Convert to fraction form
    6,600.12/9,901.71 = 1,920.24/x
  3. Step 3: Cross multiply
    6,600.12x = 9,901.71 × 1,920.24
  4. Step 4: Simplify right side
    6,600.12x = 19,013,600.50
  5. Step 5: Solve for x
    x = 19,013,600.50/6,600.12
  6. Step 6: Final answer
    x = 2,880.80

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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.