Home / 13,351.52-18,423.48-7,382.38

Finding the Fourth Proportional to 13,351.52, 18,423.48 and 7,382.38

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Solution

The fourth proportional to 13,351.52, 18,423.48 and 7,382.38 is: 10,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.52 : 18,423.48 = 7,382.38 : x
  2. Step 2: Convert to fraction form
    13,351.52/18,423.48 = 7,382.38/x
  3. Step 3: Cross multiply
    13,351.52x = 18,423.48 × 7,382.38
  4. Step 4: Simplify right side
    13,351.52x = 136,009,130.28
  5. Step 5: Solve for x
    x = 136,009,130.28/13,351.52
  6. Step 6: Final answer
    x = 10,186.79

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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.