Home / 7,886.12-11,831.90-3,506.64

Finding the Fourth Proportional to 7,886.12, 11,831.90 and 3,506.64

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Solution

The fourth proportional to 7,886.12, 11,831.90 and 3,506.64 is: 5,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.12 : 11,831.90 = 3,506.64 : x
  2. Step 2: Convert to fraction form
    7,886.12/11,831.90 = 3,506.64/x
  3. Step 3: Cross multiply
    7,886.12x = 11,831.90 × 3,506.64
  4. Step 4: Simplify right side
    7,886.12x = 41,490,196.28
  5. Step 5: Solve for x
    x = 41,490,196.28/7,886.12
  6. Step 6: Final answer
    x = 5,261.17

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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.