Home / 10,055.20-15,087.36-4,213.12

Finding the Fourth Proportional to 10,055.20, 15,087.36 and 4,213.12

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Solution

The fourth proportional to 10,055.20, 15,087.36 and 4,213.12 is: 6,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.20 : 15,087.36 = 4,213.12 : x
  2. Step 2: Convert to fraction form
    10,055.20/15,087.36 = 4,213.12/x
  3. Step 3: Cross multiply
    10,055.20x = 15,087.36 × 4,213.12
  4. Step 4: Simplify right side
    10,055.20x = 63,564,858.16
  5. Step 5: Solve for x
    x = 63,564,858.16/10,055.20
  6. Step 6: Final answer
    x = 6,321.59

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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.