Home / 8,922.76-12,313.61-5,146.08

Finding the Fourth Proportional to 8,922.76, 12,313.61 and 5,146.08

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Solution

The fourth proportional to 8,922.76, 12,313.61 and 5,146.08 is: 7,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.76 : 12,313.61 = 5,146.08 : x
  2. Step 2: Convert to fraction form
    8,922.76/12,313.61 = 5,146.08/x
  3. Step 3: Cross multiply
    8,922.76x = 12,313.61 × 5,146.08
  4. Step 4: Simplify right side
    8,922.76x = 63,366,813.19
  5. Step 5: Solve for x
    x = 63,366,813.19/8,922.76
  6. Step 6: Final answer
    x = 7,101.71

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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.