Home / 13,134.36-18,127.56-7,471.62

Finding the Fourth Proportional to 13,134.36, 18,127.56 and 7,471.62

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Solution

The fourth proportional to 13,134.36, 18,127.56 and 7,471.62 is: 10,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.36 : 18,127.56 = 7,471.62 : x
  2. Step 2: Convert to fraction form
    13,134.36/18,127.56 = 7,471.62/x
  3. Step 3: Cross multiply
    13,134.36x = 18,127.56 × 7,471.62
  4. Step 4: Simplify right side
    13,134.36x = 135,442,239.85
  5. Step 5: Solve for x
    x = 135,442,239.85/13,134.36
  6. Step 6: Final answer
    x = 10,312.05

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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.