Home / 8,812.86-13,209.96-6,728.34

Finding the Fourth Proportional to 8,812.86, 13,209.96 and 6,728.34

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Solution

The fourth proportional to 8,812.86, 13,209.96 and 6,728.34 is: 10,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.86 : 13,209.96 = 6,728.34 : x
  2. Step 2: Convert to fraction form
    8,812.86/13,209.96 = 6,728.34/x
  3. Step 3: Cross multiply
    8,812.86x = 13,209.96 × 6,728.34
  4. Step 4: Simplify right side
    8,812.86x = 88,881,102.27
  5. Step 5: Solve for x
    x = 88,881,102.27/8,812.86
  6. Step 6: Final answer
    x = 10,085.39

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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.