Home / 13,423.56-20,036.76-11,847.12

Finding the Fourth Proportional to 13,423.56, 20,036.76 and 11,847.12

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Solution

The fourth proportional to 13,423.56, 20,036.76 and 11,847.12 is: 17,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.56 : 20,036.76 = 11,847.12 : x
  2. Step 2: Convert to fraction form
    13,423.56/20,036.76 = 11,847.12/x
  3. Step 3: Cross multiply
    13,423.56x = 20,036.76 × 11,847.12
  4. Step 4: Simplify right side
    13,423.56x = 237,377,900.13
  5. Step 5: Solve for x
    x = 237,377,900.13/13,423.56
  6. Step 6: Final answer
    x = 17,683.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.