Home / 10,428.36-14,391.30-5,712.33

Finding the Fourth Proportional to 10,428.36, 14,391.30 and 5,712.33

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Solution

The fourth proportional to 10,428.36, 14,391.30 and 5,712.33 is: 7,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.36 : 14,391.30 = 5,712.33 : x
  2. Step 2: Convert to fraction form
    10,428.36/14,391.30 = 5,712.33/x
  3. Step 3: Cross multiply
    10,428.36x = 14,391.30 × 5,712.33
  4. Step 4: Simplify right side
    10,428.36x = 82,207,854.73
  5. Step 5: Solve for x
    x = 82,207,854.73/10,428.36
  6. Step 6: Final answer
    x = 7,883.10

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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.