Home / 13,238.45-18,269.35-7,270.51

Finding the Fourth Proportional to 13,238.45, 18,269.35 and 7,270.51

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Solution

The fourth proportional to 13,238.45, 18,269.35 and 7,270.51 is: 10,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.45 : 18,269.35 = 7,270.51 : x
  2. Step 2: Convert to fraction form
    13,238.45/18,269.35 = 7,270.51/x
  3. Step 3: Cross multiply
    13,238.45x = 18,269.35 × 7,270.51
  4. Step 4: Simplify right side
    13,238.45x = 132,827,491.87
  5. Step 5: Solve for x
    x = 132,827,491.87/13,238.45
  6. Step 6: Final answer
    x = 10,033.46

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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.