Home / 13,506.18-20,160.59-12,530.53

Finding the Fourth Proportional to 13,506.18, 20,160.59 and 12,530.53

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Solution

The fourth proportional to 13,506.18, 20,160.59 and 12,530.53 is: 18,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.18 : 20,160.59 = 12,530.53 : x
  2. Step 2: Convert to fraction form
    13,506.18/20,160.59 = 12,530.53/x
  3. Step 3: Cross multiply
    13,506.18x = 20,160.59 × 12,530.53
  4. Step 4: Simplify right side
    13,506.18x = 252,622,877.81
  5. Step 5: Solve for x
    x = 252,622,877.81/13,506.18
  6. Step 6: Final answer
    x = 18,704.24

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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.