Home / 18,397.34-25,388.87-13,029.38

Finding the Fourth Proportional to 18,397.34, 25,388.87 and 13,029.38

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Solution

The fourth proportional to 18,397.34, 25,388.87 and 13,029.38 is: 17,980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.34 : 25,388.87 = 13,029.38 : x
  2. Step 2: Convert to fraction form
    18,397.34/25,388.87 = 13,029.38/x
  3. Step 3: Cross multiply
    18,397.34x = 25,388.87 × 13,029.38
  4. Step 4: Simplify right side
    18,397.34x = 330,801,235.00
  5. Step 5: Solve for x
    x = 330,801,235.00/18,397.34
  6. Step 6: Final answer
    x = 17,980.93

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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.