Home / 10,389.41-14,343.20-6,858.82

Finding the Fourth Proportional to 10,389.41, 14,343.20 and 6,858.82

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Solution

The fourth proportional to 10,389.41, 14,343.20 and 6,858.82 is: 9,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.41 : 14,343.20 = 6,858.82 : x
  2. Step 2: Convert to fraction form
    10,389.41/14,343.20 = 6,858.82/x
  3. Step 3: Cross multiply
    10,389.41x = 14,343.20 × 6,858.82
  4. Step 4: Simplify right side
    10,389.41x = 98,377,408.31
  5. Step 5: Solve for x
    x = 98,377,408.31/10,389.41
  6. Step 6: Final answer
    x = 9,469.01

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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.