Home / 10,982.13-15,154.74-6,506.30

Finding the Fourth Proportional to 10,982.13, 15,154.74 and 6,506.30

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Solution

The fourth proportional to 10,982.13, 15,154.74 and 6,506.30 is: 8,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.13 : 15,154.74 = 6,506.30 : x
  2. Step 2: Convert to fraction form
    10,982.13/15,154.74 = 6,506.30/x
  3. Step 3: Cross multiply
    10,982.13x = 15,154.74 × 6,506.30
  4. Step 4: Simplify right side
    10,982.13x = 98,601,209.09
  5. Step 5: Solve for x
    x = 98,601,209.09/10,982.13
  6. Step 6: Final answer
    x = 8,978.33

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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.