Home / 14,443.20-19,930.77-8,474.40

Finding the Fourth Proportional to 14,443.20, 19,930.77 and 8,474.40

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Solution

The fourth proportional to 14,443.20, 19,930.77 and 8,474.40 is: 11,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.20 : 19,930.77 = 8,474.40 : x
  2. Step 2: Convert to fraction form
    14,443.20/19,930.77 = 8,474.40/x
  3. Step 3: Cross multiply
    14,443.20x = 19,930.77 × 8,474.40
  4. Step 4: Simplify right side
    14,443.20x = 168,901,317.29
  5. Step 5: Solve for x
    x = 168,901,317.29/14,443.20
  6. Step 6: Final answer
    x = 11,694.18

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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.