Home / 13,441.77-20,178.23-7,213.95

Finding the Fourth Proportional to 13,441.77, 20,178.23 and 7,213.95

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Solution

The fourth proportional to 13,441.77, 20,178.23 and 7,213.95 is: 10,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.77 : 20,178.23 = 7,213.95 : x
  2. Step 2: Convert to fraction form
    13,441.77/20,178.23 = 7,213.95/x
  3. Step 3: Cross multiply
    13,441.77x = 20,178.23 × 7,213.95
  4. Step 4: Simplify right side
    13,441.77x = 145,564,706.24
  5. Step 5: Solve for x
    x = 145,564,706.24/13,441.77
  6. Step 6: Final answer
    x = 10,829.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.