Home / 8,389.76-11,576.91-6,710.56

Finding the Fourth Proportional to 8,389.76, 11,576.91 and 6,710.56

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Solution

The fourth proportional to 8,389.76, 11,576.91 and 6,710.56 is: 9,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.76 : 11,576.91 = 6,710.56 : x
  2. Step 2: Convert to fraction form
    8,389.76/11,576.91 = 6,710.56/x
  3. Step 3: Cross multiply
    8,389.76x = 11,576.91 × 6,710.56
  4. Step 4: Simplify right side
    8,389.76x = 77,687,491.29
  5. Step 5: Solve for x
    x = 77,687,491.29/8,389.76
  6. Step 6: Final answer
    x = 9,259.80

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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.