Home / 13,875.56-20,795.45-12,089.38

Finding the Fourth Proportional to 13,875.56, 20,795.45 and 12,089.38

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Solution

The fourth proportional to 13,875.56, 20,795.45 and 12,089.38 is: 18,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.56 : 20,795.45 = 12,089.38 : x
  2. Step 2: Convert to fraction form
    13,875.56/20,795.45 = 12,089.38/x
  3. Step 3: Cross multiply
    13,875.56x = 20,795.45 × 12,089.38
  4. Step 4: Simplify right side
    13,875.56x = 251,404,097.32
  5. Step 5: Solve for x
    x = 251,404,097.32/13,875.56
  6. Step 6: Final answer
    x = 18,118.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.