Home / 10,455.18-15,684.57-3,528.06

Finding the Fourth Proportional to 10,455.18, 15,684.57 and 3,528.06

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Solution

The fourth proportional to 10,455.18, 15,684.57 and 3,528.06 is: 5,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.18 : 15,684.57 = 3,528.06 : x
  2. Step 2: Convert to fraction form
    10,455.18/15,684.57 = 3,528.06/x
  3. Step 3: Cross multiply
    10,455.18x = 15,684.57 × 3,528.06
  4. Step 4: Simplify right side
    10,455.18x = 55,336,104.03
  5. Step 5: Solve for x
    x = 55,336,104.03/10,455.18
  6. Step 6: Final answer
    x = 5,292.70

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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.