Home / 16,930.30-25,420.11-12,501.63

Finding the Fourth Proportional to 16,930.30, 25,420.11 and 12,501.63

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Solution

The fourth proportional to 16,930.30, 25,420.11 and 12,501.63 is: 18,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930.30 : 25,420.11 = 12,501.63 : x
  2. Step 2: Convert to fraction form
    16,930.30/25,420.11 = 12,501.63/x
  3. Step 3: Cross multiply
    16,930.30x = 25,420.11 × 12,501.63
  4. Step 4: Simplify right side
    16,930.30x = 317,792,809.78
  5. Step 5: Solve for x
    x = 317,792,809.78/16,930.30
  6. Step 6: Final answer
    x = 18,770.65

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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.