Home / 10,378.83-14,318.67-6,393.03

Finding the Fourth Proportional to 10,378.83, 14,318.67 and 6,393.03

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Solution

The fourth proportional to 10,378.83, 14,318.67 and 6,393.03 is: 8,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.83 : 14,318.67 = 6,393.03 : x
  2. Step 2: Convert to fraction form
    10,378.83/14,318.67 = 6,393.03/x
  3. Step 3: Cross multiply
    10,378.83x = 14,318.67 × 6,393.03
  4. Step 4: Simplify right side
    10,378.83x = 91,539,686.87
  5. Step 5: Solve for x
    x = 91,539,686.87/10,378.83
  6. Step 6: Final answer
    x = 8,819.85

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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.