Home / 12,930.30-19,397.61-4,608.36

Finding the Fourth Proportional to 12,930.30, 19,397.61 and 4,608.36

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Solution

The fourth proportional to 12,930.30, 19,397.61 and 4,608.36 is: 6,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.30 : 19,397.61 = 4,608.36 : x
  2. Step 2: Convert to fraction form
    12,930.30/19,397.61 = 4,608.36/x
  3. Step 3: Cross multiply
    12,930.30x = 19,397.61 × 4,608.36
  4. Step 4: Simplify right side
    12,930.30x = 89,391,170.02
  5. Step 5: Solve for x
    x = 89,391,170.02/12,930.30
  6. Step 6: Final answer
    x = 6,913.31

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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.