Home / 14,220.60-21,328.20-4,360.20

Finding the Fourth Proportional to 14,220.60, 21,328.20 and 4,360.20

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Solution

The fourth proportional to 14,220.60, 21,328.20 and 4,360.20 is: 6,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.60 : 21,328.20 = 4,360.20 : x
  2. Step 2: Convert to fraction form
    14,220.60/21,328.20 = 4,360.20/x
  3. Step 3: Cross multiply
    14,220.60x = 21,328.20 × 4,360.20
  4. Step 4: Simplify right side
    14,220.60x = 92,995,217.64
  5. Step 5: Solve for x
    x = 92,995,217.64/14,220.60
  6. Step 6: Final answer
    x = 6,539.47

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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.