Home / 13,656.95-20,488.17-4,299.33

Finding the Fourth Proportional to 13,656.95, 20,488.17 and 4,299.33

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Solution

The fourth proportional to 13,656.95, 20,488.17 and 4,299.33 is: 6,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.95 : 20,488.17 = 4,299.33 : x
  2. Step 2: Convert to fraction form
    13,656.95/20,488.17 = 4,299.33/x
  3. Step 3: Cross multiply
    13,656.95x = 20,488.17 × 4,299.33
  4. Step 4: Simplify right side
    13,656.95x = 88,085,345.36
  5. Step 5: Solve for x
    x = 88,085,345.36/13,656.95
  6. Step 6: Final answer
    x = 6,449.85

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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.