Home / 13,445.57-20,172.46-6,876.37

Finding the Fourth Proportional to 13,445.57, 20,172.46 and 6,876.37

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Solution

The fourth proportional to 13,445.57, 20,172.46 and 6,876.37 is: 10,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.57 : 20,172.46 = 6,876.37 : x
  2. Step 2: Convert to fraction form
    13,445.57/20,172.46 = 6,876.37/x
  3. Step 3: Cross multiply
    13,445.57x = 20,172.46 × 6,876.37
  4. Step 4: Simplify right side
    13,445.57x = 138,713,298.77
  5. Step 5: Solve for x
    x = 138,713,298.77/13,445.57
  6. Step 6: Final answer
    x = 10,316.65

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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.