Home / 15,535.80-21,430.98-9,246.96

Finding the Fourth Proportional to 15,535.80, 21,430.98 and 9,246.96

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Solution

The fourth proportional to 15,535.80, 21,430.98 and 9,246.96 is: 12,755.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.80 : 21,430.98 = 9,246.96 : x
  2. Step 2: Convert to fraction form
    15,535.80/21,430.98 = 9,246.96/x
  3. Step 3: Cross multiply
    15,535.80x = 21,430.98 × 9,246.96
  4. Step 4: Simplify right side
    15,535.80x = 198,171,414.82
  5. Step 5: Solve for x
    x = 198,171,414.82/15,535.80
  6. Step 6: Final answer
    x = 12,755.79

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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.