Home / 13,657.30-20,479.08-6,632.90

Finding the Fourth Proportional to 13,657.30, 20,479.08 and 6,632.90

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Solution

The fourth proportional to 13,657.30, 20,479.08 and 6,632.90 is: 9,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.30 : 20,479.08 = 6,632.90 : x
  2. Step 2: Convert to fraction form
    13,657.30/20,479.08 = 6,632.90/x
  3. Step 3: Cross multiply
    13,657.30x = 20,479.08 × 6,632.90
  4. Step 4: Simplify right side
    13,657.30x = 135,835,689.73
  5. Step 5: Solve for x
    x = 135,835,689.73/13,657.30
  6. Step 6: Final answer
    x = 9,946.01

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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.