Home / 10,839.05-14,959.10-6,123.63

Finding the Fourth Proportional to 10,839.05, 14,959.10 and 6,123.63

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Solution

The fourth proportional to 10,839.05, 14,959.10 and 6,123.63 is: 8,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.05 : 14,959.10 = 6,123.63 : x
  2. Step 2: Convert to fraction form
    10,839.05/14,959.10 = 6,123.63/x
  3. Step 3: Cross multiply
    10,839.05x = 14,959.10 × 6,123.63
  4. Step 4: Simplify right side
    10,839.05x = 91,603,993.53
  5. Step 5: Solve for x
    x = 91,603,993.53/10,839.05
  6. Step 6: Final answer
    x = 8,451.29

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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.