Home / 13,631.27-18,844.70-13,506.53

Finding the Fourth Proportional to 13,631.27, 18,844.70 and 13,506.53

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Solution

The fourth proportional to 13,631.27, 18,844.70 and 13,506.53 is: 18,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.27 : 18,844.70 = 13,506.53 : x
  2. Step 2: Convert to fraction form
    13,631.27/18,844.70 = 13,506.53/x
  3. Step 3: Cross multiply
    13,631.27x = 18,844.70 × 13,506.53
  4. Step 4: Simplify right side
    13,631.27x = 254,526,505.89
  5. Step 5: Solve for x
    x = 254,526,505.89/13,631.27
  6. Step 6: Final answer
    x = 18,672.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.