Home / 18,291.36-25,242.12-9,907.92

Finding the Fourth Proportional to 18,291.36, 25,242.12 and 9,907.92

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Solution

The fourth proportional to 18,291.36, 25,242.12 and 9,907.92 is: 13,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.36 : 25,242.12 = 9,907.92 : x
  2. Step 2: Convert to fraction form
    18,291.36/25,242.12 = 9,907.92/x
  3. Step 3: Cross multiply
    18,291.36x = 25,242.12 × 9,907.92
  4. Step 4: Simplify right side
    18,291.36x = 250,096,905.59
  5. Step 5: Solve for x
    x = 250,096,905.59/18,291.36
  6. Step 6: Final answer
    x = 13,672.95

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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.