Home / 10,455.68-15,685.32-3,528.56

Finding the Fourth Proportional to 10,455.68, 15,685.32 and 3,528.56

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Solution

The fourth proportional to 10,455.68, 15,685.32 and 3,528.56 is: 5,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.68 : 15,685.32 = 3,528.56 : x
  2. Step 2: Convert to fraction form
    10,455.68/15,685.32 = 3,528.56/x
  3. Step 3: Cross multiply
    10,455.68x = 15,685.32 × 3,528.56
  4. Step 4: Simplify right side
    10,455.68x = 55,346,592.74
  5. Step 5: Solve for x
    x = 55,346,592.74/10,455.68
  6. Step 6: Final answer
    x = 5,293.45

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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.