Home / 13,429.36-18,531.66-7,460.92

Finding the Fourth Proportional to 13,429.36, 18,531.66 and 7,460.92

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Solution

The fourth proportional to 13,429.36, 18,531.66 and 7,460.92 is: 10,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.36 : 18,531.66 = 7,460.92 : x
  2. Step 2: Convert to fraction form
    13,429.36/18,531.66 = 7,460.92/x
  3. Step 3: Cross multiply
    13,429.36x = 18,531.66 × 7,460.92
  4. Step 4: Simplify right side
    13,429.36x = 138,263,232.73
  5. Step 5: Solve for x
    x = 138,263,232.73/13,429.36
  6. Step 6: Final answer
    x = 10,295.59

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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.