Home / 13,440.36-18,546.66-7,471.47

Finding the Fourth Proportional to 13,440.36, 18,546.66 and 7,471.47

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Solution

The fourth proportional to 13,440.36, 18,546.66 and 7,471.47 is: 10,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.36 : 18,546.66 = 7,471.47 : x
  2. Step 2: Convert to fraction form
    13,440.36/18,546.66 = 7,471.47/x
  3. Step 3: Cross multiply
    13,440.36x = 18,546.66 × 7,471.47
  4. Step 4: Simplify right side
    13,440.36x = 138,570,813.79
  5. Step 5: Solve for x
    x = 138,570,813.79/13,440.36
  6. Step 6: Final answer
    x = 10,310.05

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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.