Home / 10,379.93-14,321.75-6,345.72

Finding the Fourth Proportional to 10,379.93, 14,321.75 and 6,345.72

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Solution

The fourth proportional to 10,379.93, 14,321.75 and 6,345.72 is: 8,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.93 : 14,321.75 = 6,345.72 : x
  2. Step 2: Convert to fraction form
    10,379.93/14,321.75 = 6,345.72/x
  3. Step 3: Cross multiply
    10,379.93x = 14,321.75 × 6,345.72
  4. Step 4: Simplify right side
    10,379.93x = 90,881,783.68
  5. Step 5: Solve for x
    x = 90,881,783.68/10,379.93
  6. Step 6: Final answer
    x = 8,755.53

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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.