Home / 8,690.15-13,025.13-4,000.31

Finding the Fourth Proportional to 8,690.15, 13,025.13 and 4,000.31

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Solution

The fourth proportional to 8,690.15, 13,025.13 and 4,000.31 is: 5,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.15 : 13,025.13 = 4,000.31 : x
  2. Step 2: Convert to fraction form
    8,690.15/13,025.13 = 4,000.31/x
  3. Step 3: Cross multiply
    8,690.15x = 13,025.13 × 4,000.31
  4. Step 4: Simplify right side
    8,690.15x = 52,104,492.66
  5. Step 5: Solve for x
    x = 52,104,492.66/8,690.15
  6. Step 6: Final answer
    x = 5,995.81

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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.