Home / 10,611.12-15,916.68-4,767.28

Finding the Fourth Proportional to 10,611.12, 15,916.68 and 4,767.28

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Solution

The fourth proportional to 10,611.12, 15,916.68 and 4,767.28 is: 7,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.12 : 15,916.68 = 4,767.28 : x
  2. Step 2: Convert to fraction form
    10,611.12/15,916.68 = 4,767.28/x
  3. Step 3: Cross multiply
    10,611.12x = 15,916.68 × 4,767.28
  4. Step 4: Simplify right side
    10,611.12x = 75,879,270.23
  5. Step 5: Solve for x
    x = 75,879,270.23/10,611.12
  6. Step 6: Final answer
    x = 7,150.92

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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.