Home / 8,219.17-12,327.18-3,539.98

Finding the Fourth Proportional to 8,219.17, 12,327.18 and 3,539.98

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Solution

The fourth proportional to 8,219.17, 12,327.18 and 3,539.98 is: 5,309.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.17 : 12,327.18 = 3,539.98 : x
  2. Step 2: Convert to fraction form
    8,219.17/12,327.18 = 3,539.98/x
  3. Step 3: Cross multiply
    8,219.17x = 12,327.18 × 3,539.98
  4. Step 4: Simplify right side
    8,219.17x = 43,637,970.66
  5. Step 5: Solve for x
    x = 43,637,970.66/8,219.17
  6. Step 6: Final answer
    x = 5,309.29

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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.