Home / 8,912.48-12,295.14-5,769.68

Finding the Fourth Proportional to 8,912.48, 12,295.14 and 5,769.68

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Solution

The fourth proportional to 8,912.48, 12,295.14 and 5,769.68 is: 7,959.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.48 : 12,295.14 = 5,769.68 : x
  2. Step 2: Convert to fraction form
    8,912.48/12,295.14 = 5,769.68/x
  3. Step 3: Cross multiply
    8,912.48x = 12,295.14 × 5,769.68
  4. Step 4: Simplify right side
    8,912.48x = 70,939,023.36
  5. Step 5: Solve for x
    x = 70,939,023.36/8,912.48
  6. Step 6: Final answer
    x = 7,959.52

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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.