Home / 13,801.95-19,040.32-8,132.82

Finding the Fourth Proportional to 13,801.95, 19,040.32 and 8,132.82

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Solution

The fourth proportional to 13,801.95, 19,040.32 and 8,132.82 is: 11,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.95 : 19,040.32 = 8,132.82 : x
  2. Step 2: Convert to fraction form
    13,801.95/19,040.32 = 8,132.82/x
  3. Step 3: Cross multiply
    13,801.95x = 19,040.32 × 8,132.82
  4. Step 4: Simplify right side
    13,801.95x = 154,851,454.64
  5. Step 5: Solve for x
    x = 154,851,454.64/13,801.95
  6. Step 6: Final answer
    x = 11,219.54

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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.