Home / 10,839.51-14,958.75-6,123.90

Finding the Fourth Proportional to 10,839.51, 14,958.75 and 6,123.90

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Solution

The fourth proportional to 10,839.51, 14,958.75 and 6,123.90 is: 8,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.51 : 14,958.75 = 6,123.90 : x
  2. Step 2: Convert to fraction form
    10,839.51/14,958.75 = 6,123.90/x
  3. Step 3: Cross multiply
    10,839.51x = 14,958.75 × 6,123.90
  4. Step 4: Simplify right side
    10,839.51x = 91,605,889.13
  5. Step 5: Solve for x
    x = 91,605,889.13/10,839.51
  6. Step 6: Final answer
    x = 8,451.11

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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.