Home / 10,143.58-13,997.70-6,368.70

Finding the Fourth Proportional to 10,143.58, 13,997.70 and 6,368.70

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Solution

The fourth proportional to 10,143.58, 13,997.70 and 6,368.70 is: 8,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.58 : 13,997.70 = 6,368.70 : x
  2. Step 2: Convert to fraction form
    10,143.58/13,997.70 = 6,368.70/x
  3. Step 3: Cross multiply
    10,143.58x = 13,997.70 × 6,368.70
  4. Step 4: Simplify right side
    10,143.58x = 89,147,151.99
  5. Step 5: Solve for x
    x = 89,147,151.99/10,143.58
  6. Step 6: Final answer
    x = 8,788.53

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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.