Home / 8,331.66-12,492.63-2,486.70

Finding the Fourth Proportional to 8,331.66, 12,492.63 and 2,486.70

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Solution

The fourth proportional to 8,331.66, 12,492.63 and 2,486.70 is: 3,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.66 : 12,492.63 = 2,486.70 : x
  2. Step 2: Convert to fraction form
    8,331.66/12,492.63 = 2,486.70/x
  3. Step 3: Cross multiply
    8,331.66x = 12,492.63 × 2,486.70
  4. Step 4: Simplify right side
    8,331.66x = 31,065,423.02
  5. Step 5: Solve for x
    x = 31,065,423.02/8,331.66
  6. Step 6: Final answer
    x = 3,728.60

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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.