Home / 10,935.74-15,091.38-6,220.10

Finding the Fourth Proportional to 10,935.74, 15,091.38 and 6,220.10

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Solution

The fourth proportional to 10,935.74, 15,091.38 and 6,220.10 is: 8,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.74 : 15,091.38 = 6,220.10 : x
  2. Step 2: Convert to fraction form
    10,935.74/15,091.38 = 6,220.10/x
  3. Step 3: Cross multiply
    10,935.74x = 15,091.38 × 6,220.10
  4. Step 4: Simplify right side
    10,935.74x = 93,869,892.74
  5. Step 5: Solve for x
    x = 93,869,892.74/10,935.74
  6. Step 6: Final answer
    x = 8,583.77

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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.