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Finding the Fourth Proportional to 10,453.68, 15,682.86 and 3,528

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Solution

The fourth proportional to 10,453.68, 15,682.86 and 3,528 is: 5,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.68 : 15,682.86 = 3,528 : x
  2. Step 2: Convert to fraction form
    10,453.68/15,682.86 = 3,528/x
  3. Step 3: Cross multiply
    10,453.68x = 15,682.86 × 3,528
  4. Step 4: Simplify right side
    10,453.68x = 55,329,130.08
  5. Step 5: Solve for x
    x = 55,329,130.08/10,453.68
  6. Step 6: Final answer
    x = 5,292.79

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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.