Home / 13,613.36-20,423.28-5,293.58

Finding the Fourth Proportional to 13,613.36, 20,423.28 and 5,293.58

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Solution

The fourth proportional to 13,613.36, 20,423.28 and 5,293.58 is: 7,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.36 : 20,423.28 = 5,293.58 : x
  2. Step 2: Convert to fraction form
    13,613.36/20,423.28 = 5,293.58/x
  3. Step 3: Cross multiply
    13,613.36x = 20,423.28 × 5,293.58
  4. Step 4: Simplify right side
    13,613.36x = 108,112,266.54
  5. Step 5: Solve for x
    x = 108,112,266.54/13,613.36
  6. Step 6: Final answer
    x = 7,941.63

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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.