Home / 13,780.12-19,025.34-9,072.52

Finding the Fourth Proportional to 13,780.12, 19,025.34 and 9,072.52

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Solution

The fourth proportional to 13,780.12, 19,025.34 and 9,072.52 is: 12,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.12 : 19,025.34 = 9,072.52 : x
  2. Step 2: Convert to fraction form
    13,780.12/19,025.34 = 9,072.52/x
  3. Step 3: Cross multiply
    13,780.12x = 19,025.34 × 9,072.52
  4. Step 4: Simplify right side
    13,780.12x = 172,607,777.66
  5. Step 5: Solve for x
    x = 172,607,777.66/13,780.12
  6. Step 6: Final answer
    x = 12,525.85

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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.