Home / 8,690.67-13,035.60-3,492.90

Finding the Fourth Proportional to 8,690.67, 13,035.60 and 3,492.90

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Solution

The fourth proportional to 8,690.67, 13,035.60 and 3,492.90 is: 5,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.67 : 13,035.60 = 3,492.90 : x
  2. Step 2: Convert to fraction form
    8,690.67/13,035.60 = 3,492.90/x
  3. Step 3: Cross multiply
    8,690.67x = 13,035.60 × 3,492.90
  4. Step 4: Simplify right side
    8,690.67x = 45,532,047.24
  5. Step 5: Solve for x
    x = 45,532,047.24/8,690.67
  6. Step 6: Final answer
    x = 5,239.19

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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.