Home / 7,851.27-11,776.90-3,688.22

Finding the Fourth Proportional to 7,851.27, 11,776.90 and 3,688.22

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Solution

The fourth proportional to 7,851.27, 11,776.90 and 3,688.22 is: 5,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.27 : 11,776.90 = 3,688.22 : x
  2. Step 2: Convert to fraction form
    7,851.27/11,776.90 = 3,688.22/x
  3. Step 3: Cross multiply
    7,851.27x = 11,776.90 × 3,688.22
  4. Step 4: Simplify right side
    7,851.27x = 43,435,798.12
  5. Step 5: Solve for x
    x = 43,435,798.12/7,851.27
  6. Step 6: Final answer
    x = 5,532.33

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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.