Home / 15,074.13-20,803.37-8,360.40

Finding the Fourth Proportional to 15,074.13, 20,803.37 and 8,360.40

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Solution

The fourth proportional to 15,074.13, 20,803.37 and 8,360.40 is: 11,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.13 : 20,803.37 = 8,360.40 : x
  2. Step 2: Convert to fraction form
    15,074.13/20,803.37 = 8,360.40/x
  3. Step 3: Cross multiply
    15,074.13x = 20,803.37 × 8,360.40
  4. Step 4: Simplify right side
    15,074.13x = 173,924,494.55
  5. Step 5: Solve for x
    x = 173,924,494.55/15,074.13
  6. Step 6: Final answer
    x = 11,537.95

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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.