Home / 9,428.57-14,142.87-3,186.92

Finding the Fourth Proportional to 9,428.57, 14,142.87 and 3,186.92

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Solution

The fourth proportional to 9,428.57, 14,142.87 and 3,186.92 is: 4,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.57 : 14,142.87 = 3,186.92 : x
  2. Step 2: Convert to fraction form
    9,428.57/14,142.87 = 3,186.92/x
  3. Step 3: Cross multiply
    9,428.57x = 14,142.87 × 3,186.92
  4. Step 4: Simplify right side
    9,428.57x = 45,072,124.55
  5. Step 5: Solve for x
    x = 45,072,124.55/9,428.57
  6. Step 6: Final answer
    x = 4,780.38

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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.