Home / 13,748.46-20,621.48-7,511.28

Finding the Fourth Proportional to 13,748.46, 20,621.48 and 7,511.28

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Solution

The fourth proportional to 13,748.46, 20,621.48 and 7,511.28 is: 11,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.46 : 20,621.48 = 7,511.28 : x
  2. Step 2: Convert to fraction form
    13,748.46/20,621.48 = 7,511.28/x
  3. Step 3: Cross multiply
    13,748.46x = 20,621.48 × 7,511.28
  4. Step 4: Simplify right side
    13,748.46x = 154,893,672.74
  5. Step 5: Solve for x
    x = 154,893,672.74/13,748.46
  6. Step 6: Final answer
    x = 11,266.26

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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.