Home / 18,774.03-25,907.80-10,390.53

Finding the Fourth Proportional to 18,774.03, 25,907.80 and 10,390.53

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Solution

The fourth proportional to 18,774.03, 25,907.80 and 10,390.53 is: 14,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.03 : 25,907.80 = 10,390.53 : x
  2. Step 2: Convert to fraction form
    18,774.03/25,907.80 = 10,390.53/x
  3. Step 3: Cross multiply
    18,774.03x = 25,907.80 × 10,390.53
  4. Step 4: Simplify right side
    18,774.03x = 269,195,773.13
  5. Step 5: Solve for x
    x = 269,195,773.13/18,774.03
  6. Step 6: Final answer
    x = 14,338.73

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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.