Home / 10,981.39-15,152.68-6,672.23

Finding the Fourth Proportional to 10,981.39, 15,152.68 and 6,672.23

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Solution

The fourth proportional to 10,981.39, 15,152.68 and 6,672.23 is: 9,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.39 : 15,152.68 = 6,672.23 : x
  2. Step 2: Convert to fraction form
    10,981.39/15,152.68 = 6,672.23/x
  3. Step 3: Cross multiply
    10,981.39x = 15,152.68 × 6,672.23
  4. Step 4: Simplify right side
    10,981.39x = 101,102,212.30
  5. Step 5: Solve for x
    x = 101,102,212.30/10,981.39
  6. Step 6: Final answer
    x = 9,206.69

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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.