Home / 13,521.64-20,291.46-4,756.42

Finding the Fourth Proportional to 13,521.64, 20,291.46 and 4,756.42

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Solution

The fourth proportional to 13,521.64, 20,291.46 and 4,756.42 is: 7,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.64 : 20,291.46 = 4,756.42 : x
  2. Step 2: Convert to fraction form
    13,521.64/20,291.46 = 4,756.42/x
  3. Step 3: Cross multiply
    13,521.64x = 20,291.46 × 4,756.42
  4. Step 4: Simplify right side
    13,521.64x = 96,514,706.17
  5. Step 5: Solve for x
    x = 96,514,706.17/13,521.64
  6. Step 6: Final answer
    x = 7,137.80

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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.