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Finding the Fourth Proportional to 10,090.88, 15,119.04 and 5,477.12

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Solution

The fourth proportional to 10,090.88, 15,119.04 and 5,477.12 is: 8,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.88 : 15,119.04 = 5,477.12 : x
  2. Step 2: Convert to fraction form
    10,090.88/15,119.04 = 5,477.12/x
  3. Step 3: Cross multiply
    10,090.88x = 15,119.04 × 5,477.12
  4. Step 4: Simplify right side
    10,090.88x = 82,808,796.36
  5. Step 5: Solve for x
    x = 82,808,796.36/10,090.88
  6. Step 6: Final answer
    x = 8,206.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.