Home / 11,180.63-15,429.27-6,465.21

Finding the Fourth Proportional to 11,180.63, 15,429.27 and 6,465.21

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Solution

The fourth proportional to 11,180.63, 15,429.27 and 6,465.21 is: 8,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.63 : 15,429.27 = 6,465.21 : x
  2. Step 2: Convert to fraction form
    11,180.63/15,429.27 = 6,465.21/x
  3. Step 3: Cross multiply
    11,180.63x = 15,429.27 × 6,465.21
  4. Step 4: Simplify right side
    11,180.63x = 99,753,470.70
  5. Step 5: Solve for x
    x = 99,753,470.70/11,180.63
  6. Step 6: Final answer
    x = 8,921.99

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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.