Home / 10,840.21-14,959.78-6,124.39

Finding the Fourth Proportional to 10,840.21, 14,959.78 and 6,124.39

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Solution

The fourth proportional to 10,840.21, 14,959.78 and 6,124.39 is: 8,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,840.21 : 14,959.78 = 6,124.39 : x
  2. Step 2: Convert to fraction form
    10,840.21/14,959.78 = 6,124.39/x
  3. Step 3: Cross multiply
    10,840.21x = 14,959.78 × 6,124.39
  4. Step 4: Simplify right side
    10,840.21x = 91,619,564.87
  5. Step 5: Solve for x
    x = 91,619,564.87/10,840.21
  6. Step 6: Final answer
    x = 8,451.82

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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.