Home / 10,935-15,091.11-6,220.80

Finding the Fourth Proportional to 10,935, 15,091.11 and 6,220.80

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Solution

The fourth proportional to 10,935, 15,091.11 and 6,220.80 is: 8,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935 : 15,091.11 = 6,220.80 : x
  2. Step 2: Convert to fraction form
    10,935/15,091.11 = 6,220.80/x
  3. Step 3: Cross multiply
    10,935x = 15,091.11 × 6,220.80
  4. Step 4: Simplify right side
    10,935x = 93,878,777.09
  5. Step 5: Solve for x
    x = 93,878,777.09/10,935
  6. Step 6: Final answer
    x = 8,585.16

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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.