Home / 10,291.59-14,198.76-6,311.25

Finding the Fourth Proportional to 10,291.59, 14,198.76 and 6,311.25

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Solution

The fourth proportional to 10,291.59, 14,198.76 and 6,311.25 is: 8,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.59 : 14,198.76 = 6,311.25 : x
  2. Step 2: Convert to fraction form
    10,291.59/14,198.76 = 6,311.25/x
  3. Step 3: Cross multiply
    10,291.59x = 14,198.76 × 6,311.25
  4. Step 4: Simplify right side
    10,291.59x = 89,611,924.05
  5. Step 5: Solve for x
    x = 89,611,924.05/10,291.59
  6. Step 6: Final answer
    x = 8,707.30

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1.5x scale

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.