Home / 10,428.33-14,391.39-6,340.13

Finding the Fourth Proportional to 10,428.33, 14,391.39 and 6,340.13

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Solution

The fourth proportional to 10,428.33, 14,391.39 and 6,340.13 is: 8,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.33 : 14,391.39 = 6,340.13 : x
  2. Step 2: Convert to fraction form
    10,428.33/14,391.39 = 6,340.13/x
  3. Step 3: Cross multiply
    10,428.33x = 14,391.39 × 6,340.13
  4. Step 4: Simplify right side
    10,428.33x = 91,243,211.52
  5. Step 5: Solve for x
    x = 91,243,211.52/10,428.33
  6. Step 6: Final answer
    x = 8,749.55

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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.