Home / 19,689.60-29,538.18-6,366.18

Finding the Fourth Proportional to 19,689.60, 29,538.18 and 6,366.18

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Solution

The fourth proportional to 19,689.60, 29,538.18 and 6,366.18 is: 9,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.60 : 29,538.18 = 6,366.18 : x
  2. Step 2: Convert to fraction form
    19,689.60/29,538.18 = 6,366.18/x
  3. Step 3: Cross multiply
    19,689.60x = 29,538.18 × 6,366.18
  4. Step 4: Simplify right side
    19,689.60x = 188,045,370.75
  5. Step 5: Solve for x
    x = 188,045,370.75/19,689.60
  6. Step 6: Final answer
    x = 9,550.49

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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.