Home / 15,113.42-20,850.54-8,738.84

Finding the Fourth Proportional to 15,113.42, 20,850.54 and 8,738.84

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Solution

The fourth proportional to 15,113.42, 20,850.54 and 8,738.84 is: 12,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.42 : 20,850.54 = 8,738.84 : x
  2. Step 2: Convert to fraction form
    15,113.42/20,850.54 = 8,738.84/x
  3. Step 3: Cross multiply
    15,113.42x = 20,850.54 × 8,738.84
  4. Step 4: Simplify right side
    15,113.42x = 182,209,428.72
  5. Step 5: Solve for x
    x = 182,209,428.72/15,113.42
  6. Step 6: Final answer
    x = 12,056.14

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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.