Home / 15,180.36-20,948.34-8,465.88

Finding the Fourth Proportional to 15,180.36, 20,948.34 and 8,465.88

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Solution

The fourth proportional to 15,180.36, 20,948.34 and 8,465.88 is: 11,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.36 : 20,948.34 = 8,465.88 : x
  2. Step 2: Convert to fraction form
    15,180.36/20,948.34 = 8,465.88/x
  3. Step 3: Cross multiply
    15,180.36x = 20,948.34 × 8,465.88
  4. Step 4: Simplify right side
    15,180.36x = 177,346,132.64
  5. Step 5: Solve for x
    x = 177,346,132.64/15,180.36
  6. Step 6: Final answer
    x = 11,682.60

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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.