Home / 10,690.12-14,752.40-6,213.96

Finding the Fourth Proportional to 10,690.12, 14,752.40 and 6,213.96

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Solution

The fourth proportional to 10,690.12, 14,752.40 and 6,213.96 is: 8,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.12 : 14,752.40 = 6,213.96 : x
  2. Step 2: Convert to fraction form
    10,690.12/14,752.40 = 6,213.96/x
  3. Step 3: Cross multiply
    10,690.12x = 14,752.40 × 6,213.96
  4. Step 4: Simplify right side
    10,690.12x = 91,670,823.50
  5. Step 5: Solve for x
    x = 91,670,823.50/10,690.12
  6. Step 6: Final answer
    x = 8,575.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.