Home / 13,959.92-20,924.84-5,635.65

Finding the Fourth Proportional to 13,959.92, 20,924.84 and 5,635.65

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Solution

The fourth proportional to 13,959.92, 20,924.84 and 5,635.65 is: 8,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.92 : 20,924.84 = 5,635.65 : x
  2. Step 2: Convert to fraction form
    13,959.92/20,924.84 = 5,635.65/x
  3. Step 3: Cross multiply
    13,959.92x = 20,924.84 × 5,635.65
  4. Step 4: Simplify right side
    13,959.92x = 117,925,088.64
  5. Step 5: Solve for x
    x = 117,925,088.64/13,959.92
  6. Step 6: Final answer
    x = 8,447.40

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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.