Home / 11,180.51-15,428.20-6,465.10

Finding the Fourth Proportional to 11,180.51, 15,428.20 and 6,465.10

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Solution

The fourth proportional to 11,180.51, 15,428.20 and 6,465.10 is: 8,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.51 : 15,428.20 = 6,465.10 : x
  2. Step 2: Convert to fraction form
    11,180.51/15,428.20 = 6,465.10/x
  3. Step 3: Cross multiply
    11,180.51x = 15,428.20 × 6,465.10
  4. Step 4: Simplify right side
    11,180.51x = 99,744,778.68
  5. Step 5: Solve for x
    x = 99,744,778.68/11,180.51
  6. Step 6: Final answer
    x = 8,921.31

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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.