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Finding the Fourth Proportional to 10,465.68, 15,698.52 and 3,540

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Solution

The fourth proportional to 10,465.68, 15,698.52 and 3,540 is: 5,310

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,465.68 : 15,698.52 = 3,540 : x
  2. Step 2: Convert to fraction form
    10,465.68/15,698.52 = 3,540/x
  3. Step 3: Cross multiply
    10,465.68x = 15,698.52 × 3,540
  4. Step 4: Simplify right side
    10,465.68x = 55,572,760.80
  5. Step 5: Solve for x
    x = 55,572,760.80/10,465.68
  6. Step 6: Final answer
    x = 5,310

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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.