Home / 8,930.40-12,324.08-5,392.96

Finding the Fourth Proportional to 8,930.40, 12,324.08 and 5,392.96

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Solution

The fourth proportional to 8,930.40, 12,324.08 and 5,392.96 is: 7,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.40 : 12,324.08 = 5,392.96 : x
  2. Step 2: Convert to fraction form
    8,930.40/12,324.08 = 5,392.96/x
  3. Step 3: Cross multiply
    8,930.40x = 12,324.08 × 5,392.96
  4. Step 4: Simplify right side
    8,930.40x = 66,463,270.48
  5. Step 5: Solve for x
    x = 66,463,270.48/8,930.40
  6. Step 6: Final answer
    x = 7,442.36

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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.