Home / 15,150.11-20,907.18-8,437.03

Finding the Fourth Proportional to 15,150.11, 20,907.18 and 8,437.03

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Solution

The fourth proportional to 15,150.11, 20,907.18 and 8,437.03 is: 11,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.11 : 20,907.18 = 8,437.03 : x
  2. Step 2: Convert to fraction form
    15,150.11/20,907.18 = 8,437.03/x
  3. Step 3: Cross multiply
    15,150.11x = 20,907.18 × 8,437.03
  4. Step 4: Simplify right side
    15,150.11x = 176,394,499.37
  5. Step 5: Solve for x
    x = 176,394,499.37/15,150.11
  6. Step 6: Final answer
    x = 11,643.12

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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.