Home / 15,150.22-20,907.25-8,435.93

Finding the Fourth Proportional to 15,150.22, 20,907.25 and 8,435.93

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Solution

The fourth proportional to 15,150.22, 20,907.25 and 8,435.93 is: 11,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.22 : 20,907.25 = 8,435.93 : x
  2. Step 2: Convert to fraction form
    15,150.22/20,907.25 = 8,435.93/x
  3. Step 3: Cross multiply
    15,150.22x = 20,907.25 × 8,435.93
  4. Step 4: Simplify right side
    15,150.22x = 176,371,971.87
  5. Step 5: Solve for x
    x = 176,371,971.87/15,150.22
  6. Step 6: Final answer
    x = 11,641.55

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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.