Home / 11,308.10-15,604.80-6,831.07

Finding the Fourth Proportional to 11,308.10, 15,604.80 and 6,831.07

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Solution

The fourth proportional to 11,308.10, 15,604.80 and 6,831.07 is: 9,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.10 : 15,604.80 = 6,831.07 : x
  2. Step 2: Convert to fraction form
    11,308.10/15,604.80 = 6,831.07/x
  3. Step 3: Cross multiply
    11,308.10x = 15,604.80 × 6,831.07
  4. Step 4: Simplify right side
    11,308.10x = 106,597,474.14
  5. Step 5: Solve for x
    x = 106,597,474.14/11,308.10
  6. Step 6: Final answer
    x = 9,426.65

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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.