Home / 9,790.28-14,688.48-3,127.76

Finding the Fourth Proportional to 9,790.28, 14,688.48 and 3,127.76

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Solution

The fourth proportional to 9,790.28, 14,688.48 and 3,127.76 is: 4,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.28 : 14,688.48 = 3,127.76 : x
  2. Step 2: Convert to fraction form
    9,790.28/14,688.48 = 3,127.76/x
  3. Step 3: Cross multiply
    9,790.28x = 14,688.48 × 3,127.76
  4. Step 4: Simplify right side
    9,790.28x = 45,942,040.20
  5. Step 5: Solve for x
    x = 45,942,040.20/9,790.28
  6. Step 6: Final answer
    x = 4,692.62

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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.