Home / 18,774.80-25,907.45-11,219.62

Finding the Fourth Proportional to 18,774.80, 25,907.45 and 11,219.62

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Solution

The fourth proportional to 18,774.80, 25,907.45 and 11,219.62 is: 15,482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.80 : 25,907.45 = 11,219.62 : x
  2. Step 2: Convert to fraction form
    18,774.80/25,907.45 = 11,219.62/x
  3. Step 3: Cross multiply
    18,774.80x = 25,907.45 × 11,219.62
  4. Step 4: Simplify right side
    18,774.80x = 290,671,720.46
  5. Step 5: Solve for x
    x = 290,671,720.46/18,774.80
  6. Step 6: Final answer
    x = 15,482.02

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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.