Home / 8,360.04-12,539.82-3,428.28

Finding the Fourth Proportional to 8,360.04, 12,539.82 and 3,428.28

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Solution

The fourth proportional to 8,360.04, 12,539.82 and 3,428.28 is: 5,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.04 : 12,539.82 = 3,428.28 : x
  2. Step 2: Convert to fraction form
    8,360.04/12,539.82 = 3,428.28/x
  3. Step 3: Cross multiply
    8,360.04x = 12,539.82 × 3,428.28
  4. Step 4: Simplify right side
    8,360.04x = 42,990,014.11
  5. Step 5: Solve for x
    x = 42,990,014.11/8,360.04
  6. Step 6: Final answer
    x = 5,142.32

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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.