Home / 13,238.51-18,269.15-7,270.16

Finding the Fourth Proportional to 13,238.51, 18,269.15 and 7,270.16

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Solution

The fourth proportional to 13,238.51, 18,269.15 and 7,270.16 is: 10,032.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.51 : 18,269.15 = 7,270.16 : x
  2. Step 2: Convert to fraction form
    13,238.51/18,269.15 = 7,270.16/x
  3. Step 3: Cross multiply
    13,238.51x = 18,269.15 × 7,270.16
  4. Step 4: Simplify right side
    13,238.51x = 132,819,515.87
  5. Step 5: Solve for x
    x = 132,819,515.87/13,238.51
  6. Step 6: Final answer
    x = 10,032.82

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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.