Home / 11,180.71-15,429.75-6,145.11

Finding the Fourth Proportional to 11,180.71, 15,429.75 and 6,145.11

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Solution

The fourth proportional to 11,180.71, 15,429.75 and 6,145.11 is: 8,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.71 : 15,429.75 = 6,145.11 : x
  2. Step 2: Convert to fraction form
    11,180.71/15,429.75 = 6,145.11/x
  3. Step 3: Cross multiply
    11,180.71x = 15,429.75 × 6,145.11
  4. Step 4: Simplify right side
    11,180.71x = 94,817,511.02
  5. Step 5: Solve for x
    x = 94,817,511.02/11,180.71
  6. Step 6: Final answer
    x = 8,480.46

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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.