Home / 8,742.16-13,115.67-3,812.23

Finding the Fourth Proportional to 8,742.16, 13,115.67 and 3,812.23

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Solution

The fourth proportional to 8,742.16, 13,115.67 and 3,812.23 is: 5,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.16 : 13,115.67 = 3,812.23 : x
  2. Step 2: Convert to fraction form
    8,742.16/13,115.67 = 3,812.23/x
  3. Step 3: Cross multiply
    8,742.16x = 13,115.67 × 3,812.23
  4. Step 4: Simplify right side
    8,742.16x = 49,999,950.64
  5. Step 5: Solve for x
    x = 49,999,950.64/8,742.16
  6. Step 6: Final answer
    x = 5,719.40

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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.