Home / 11,180.72-15,429.70-6,145.24

Finding the Fourth Proportional to 11,180.72, 15,429.70 and 6,145.24

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Solution

The fourth proportional to 11,180.72, 15,429.70 and 6,145.24 is: 8,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.72 : 15,429.70 = 6,145.24 : x
  2. Step 2: Convert to fraction form
    11,180.72/15,429.70 = 6,145.24/x
  3. Step 3: Cross multiply
    11,180.72x = 15,429.70 × 6,145.24
  4. Step 4: Simplify right side
    11,180.72x = 94,819,209.63
  5. Step 5: Solve for x
    x = 94,819,209.63/11,180.72
  6. Step 6: Final answer
    x = 8,480.60

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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.