Home / 8,225.66-12,338.37-1,985.62

Finding the Fourth Proportional to 8,225.66, 12,338.37 and 1,985.62

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Solution

The fourth proportional to 8,225.66, 12,338.37 and 1,985.62 is: 2,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,225.66 : 12,338.37 = 1,985.62 : x
  2. Step 2: Convert to fraction form
    8,225.66/12,338.37 = 1,985.62/x
  3. Step 3: Cross multiply
    8,225.66x = 12,338.37 × 1,985.62
  4. Step 4: Simplify right side
    8,225.66x = 24,499,314.24
  5. Step 5: Solve for x
    x = 24,499,314.24/8,225.66
  6. Step 6: Final answer
    x = 2,978.40

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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.