Home / 10,930.86-15,084.60-6,215.46

Finding the Fourth Proportional to 10,930.86, 15,084.60 and 6,215.46

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Solution

The fourth proportional to 10,930.86, 15,084.60 and 6,215.46 is: 8,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.86 : 15,084.60 = 6,215.46 : x
  2. Step 2: Convert to fraction form
    10,930.86/15,084.60 = 6,215.46/x
  3. Step 3: Cross multiply
    10,930.86x = 15,084.60 × 6,215.46
  4. Step 4: Simplify right side
    10,930.86x = 93,757,727.92
  5. Step 5: Solve for x
    x = 93,757,727.92/10,930.86
  6. Step 6: Final answer
    x = 8,577.34

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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.