Home / 9,760.72-14,639.28-8,127.76

Finding the Fourth Proportional to 9,760.72, 14,639.28 and 8,127.76

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Solution

The fourth proportional to 9,760.72, 14,639.28 and 8,127.76 is: 12,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,760.72 : 14,639.28 = 8,127.76 : x
  2. Step 2: Convert to fraction form
    9,760.72/14,639.28 = 8,127.76/x
  3. Step 3: Cross multiply
    9,760.72x = 14,639.28 × 8,127.76
  4. Step 4: Simplify right side
    9,760.72x = 118,984,554.41
  5. Step 5: Solve for x
    x = 118,984,554.41/9,760.72
  6. Step 6: Final answer
    x = 12,190.14

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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.