Home / 10,257.83-14,156.09-5,781.33

Finding the Fourth Proportional to 10,257.83, 14,156.09 and 5,781.33

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Solution

The fourth proportional to 10,257.83, 14,156.09 and 5,781.33 is: 7,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.83 : 14,156.09 = 5,781.33 : x
  2. Step 2: Convert to fraction form
    10,257.83/14,156.09 = 5,781.33/x
  3. Step 3: Cross multiply
    10,257.83x = 14,156.09 × 5,781.33
  4. Step 4: Simplify right side
    10,257.83x = 81,841,027.80
  5. Step 5: Solve for x
    x = 81,841,027.80/10,257.83
  6. Step 6: Final answer
    x = 7,978.40

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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.