Home / 10,990.76-15,163.46-6,210.14

Finding the Fourth Proportional to 10,990.76, 15,163.46 and 6,210.14

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Solution

The fourth proportional to 10,990.76, 15,163.46 and 6,210.14 is: 8,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.76 : 15,163.46 = 6,210.14 : x
  2. Step 2: Convert to fraction form
    10,990.76/15,163.46 = 6,210.14/x
  3. Step 3: Cross multiply
    10,990.76x = 15,163.46 × 6,210.14
  4. Step 4: Simplify right side
    10,990.76x = 94,167,209.48
  5. Step 5: Solve for x
    x = 94,167,209.48/10,990.76
  6. Step 6: Final answer
    x = 8,567.85

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Half scale
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Double scale
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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.