Home / 13,397.96-20,097.10-6,378.62

Finding the Fourth Proportional to 13,397.96, 20,097.10 and 6,378.62

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Solution

The fourth proportional to 13,397.96, 20,097.10 and 6,378.62 is: 9,568.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.96 : 20,097.10 = 6,378.62 : x
  2. Step 2: Convert to fraction form
    13,397.96/20,097.10 = 6,378.62/x
  3. Step 3: Cross multiply
    13,397.96x = 20,097.10 × 6,378.62
  4. Step 4: Simplify right side
    13,397.96x = 128,191,764.00
  5. Step 5: Solve for x
    x = 128,191,764.00/13,397.96
  6. Step 6: Final answer
    x = 9,568.01

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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.