Home / 14,105.87-21,158.60-3,432.26

Finding the Fourth Proportional to 14,105.87, 21,158.60 and 3,432.26

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Solution

The fourth proportional to 14,105.87, 21,158.60 and 3,432.26 is: 5,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.87 : 21,158.60 = 3,432.26 : x
  2. Step 2: Convert to fraction form
    14,105.87/21,158.60 = 3,432.26/x
  3. Step 3: Cross multiply
    14,105.87x = 21,158.60 × 3,432.26
  4. Step 4: Simplify right side
    14,105.87x = 72,621,877.91
  5. Step 5: Solve for x
    x = 72,621,877.91/14,105.87
  6. Step 6: Final answer
    x = 5,148.35

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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.