Home / 10,935.56-15,090.90-6,458.80

Finding the Fourth Proportional to 10,935.56, 15,090.90 and 6,458.80

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Solution

The fourth proportional to 10,935.56, 15,090.90 and 6,458.80 is: 8,913.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.56 : 15,090.90 = 6,458.80 : x
  2. Step 2: Convert to fraction form
    10,935.56/15,090.90 = 6,458.80/x
  3. Step 3: Cross multiply
    10,935.56x = 15,090.90 × 6,458.80
  4. Step 4: Simplify right side
    10,935.56x = 97,469,104.92
  5. Step 5: Solve for x
    x = 97,469,104.92/10,935.56
  6. Step 6: Final answer
    x = 8,913.04

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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.