Home / 13,397.22-20,097.81-12,577.14

Finding the Fourth Proportional to 13,397.22, 20,097.81 and 12,577.14

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Solution

The fourth proportional to 13,397.22, 20,097.81 and 12,577.14 is: 18,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.22 : 20,097.81 = 12,577.14 : x
  2. Step 2: Convert to fraction form
    13,397.22/20,097.81 = 12,577.14/x
  3. Step 3: Cross multiply
    13,397.22x = 20,097.81 × 12,577.14
  4. Step 4: Simplify right side
    13,397.22x = 252,772,970.06
  5. Step 5: Solve for x
    x = 252,772,970.06/13,397.22
  6. Step 6: Final answer
    x = 18,867.57

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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.