Home / 11,465.71-15,822.39-6,429.52

Finding the Fourth Proportional to 11,465.71, 15,822.39 and 6,429.52

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Solution

The fourth proportional to 11,465.71, 15,822.39 and 6,429.52 is: 8,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.71 : 15,822.39 = 6,429.52 : x
  2. Step 2: Convert to fraction form
    11,465.71/15,822.39 = 6,429.52/x
  3. Step 3: Cross multiply
    11,465.71x = 15,822.39 × 6,429.52
  4. Step 4: Simplify right side
    11,465.71x = 101,730,372.95
  5. Step 5: Solve for x
    x = 101,730,372.95/11,465.71
  6. Step 6: Final answer
    x = 8,872.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.