Home / 10,039.25-13,860.66-6,455.81

Finding the Fourth Proportional to 10,039.25, 13,860.66 and 6,455.81

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Solution

The fourth proportional to 10,039.25, 13,860.66 and 6,455.81 is: 8,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039.25 : 13,860.66 = 6,455.81 : x
  2. Step 2: Convert to fraction form
    10,039.25/13,860.66 = 6,455.81/x
  3. Step 3: Cross multiply
    10,039.25x = 13,860.66 × 6,455.81
  4. Step 4: Simplify right side
    10,039.25x = 89,481,822.09
  5. Step 5: Solve for x
    x = 89,481,822.09/10,039.25
  6. Step 6: Final answer
    x = 8,913.20

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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.