Home / 13,630.14-20,445.39-4,865.58

Finding the Fourth Proportional to 13,630.14, 20,445.39 and 4,865.58

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Solution

The fourth proportional to 13,630.14, 20,445.39 and 4,865.58 is: 7,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.14 : 20,445.39 = 4,865.58 : x
  2. Step 2: Convert to fraction form
    13,630.14/20,445.39 = 4,865.58/x
  3. Step 3: Cross multiply
    13,630.14x = 20,445.39 × 4,865.58
  4. Step 4: Simplify right side
    13,630.14x = 99,478,680.68
  5. Step 5: Solve for x
    x = 99,478,680.68/13,630.14
  6. Step 6: Final answer
    x = 7,298.43

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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.