Home / 15,482.46-21,366.56-8,768.38

Finding the Fourth Proportional to 15,482.46, 21,366.56 and 8,768.38

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Solution

The fourth proportional to 15,482.46, 21,366.56 and 8,768.38 is: 12,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.46 : 21,366.56 = 8,768.38 : x
  2. Step 2: Convert to fraction form
    15,482.46/21,366.56 = 8,768.38/x
  3. Step 3: Cross multiply
    15,482.46x = 21,366.56 × 8,768.38
  4. Step 4: Simplify right side
    15,482.46x = 187,350,117.37
  5. Step 5: Solve for x
    x = 187,350,117.37/15,482.46
  6. Step 6: Final answer
    x = 12,100.80

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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.