Home / 14,351.16-21,528.90-5,115

Finding the Fourth Proportional to 14,351.16, 21,528.90 and 5,115

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Solution

The fourth proportional to 14,351.16, 21,528.90 and 5,115 is: 7,673.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.16 : 21,528.90 = 5,115 : x
  2. Step 2: Convert to fraction form
    14,351.16/21,528.90 = 5,115/x
  3. Step 3: Cross multiply
    14,351.16x = 21,528.90 × 5,115
  4. Step 4: Simplify right side
    14,351.16x = 110,120,323.50
  5. Step 5: Solve for x
    x = 110,120,323.50/14,351.16
  6. Step 6: Final answer
    x = 7,673.27

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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.