Home / 15,074.64-20,801.61-8,360.15

Finding the Fourth Proportional to 15,074.64, 20,801.61 and 8,360.15

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Solution

The fourth proportional to 15,074.64, 20,801.61 and 8,360.15 is: 11,536.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.64 : 20,801.61 = 8,360.15 : x
  2. Step 2: Convert to fraction form
    15,074.64/20,801.61 = 8,360.15/x
  3. Step 3: Cross multiply
    15,074.64x = 20,801.61 × 8,360.15
  4. Step 4: Simplify right side
    15,074.64x = 173,904,579.84
  5. Step 5: Solve for x
    x = 173,904,579.84/15,074.64
  6. Step 6: Final answer
    x = 11,536.23

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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.