Home / 13,652.60-20,479.01-4,292.39

Finding the Fourth Proportional to 13,652.60, 20,479.01 and 4,292.39

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Solution

The fourth proportional to 13,652.60, 20,479.01 and 4,292.39 is: 6,438.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.60 : 20,479.01 = 4,292.39 : x
  2. Step 2: Convert to fraction form
    13,652.60/20,479.01 = 4,292.39/x
  3. Step 3: Cross multiply
    13,652.60x = 20,479.01 × 4,292.39
  4. Step 4: Simplify right side
    13,652.60x = 87,903,927.47
  5. Step 5: Solve for x
    x = 87,903,927.47/13,652.60
  6. Step 6: Final answer
    x = 6,438.62

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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.