Home / 13,657.38-20,479.07-6,255.50

Finding the Fourth Proportional to 13,657.38, 20,479.07 and 6,255.50

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Solution

The fourth proportional to 13,657.38, 20,479.07 and 6,255.50 is: 9,380.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.38 : 20,479.07 = 6,255.50 : x
  2. Step 2: Convert to fraction form
    13,657.38/20,479.07 = 6,255.50/x
  3. Step 3: Cross multiply
    13,657.38x = 20,479.07 × 6,255.50
  4. Step 4: Simplify right side
    13,657.38x = 128,106,688.71
  5. Step 5: Solve for x
    x = 128,106,688.71/13,657.38
  6. Step 6: Final answer
    x = 9,380.03

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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.