Home / 10,028.07-13,840.65-5,781.96

Finding the Fourth Proportional to 10,028.07, 13,840.65 and 5,781.96

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Solution

The fourth proportional to 10,028.07, 13,840.65 and 5,781.96 is: 7,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.07 : 13,840.65 = 5,781.96 : x
  2. Step 2: Convert to fraction form
    10,028.07/13,840.65 = 5,781.96/x
  3. Step 3: Cross multiply
    10,028.07x = 13,840.65 × 5,781.96
  4. Step 4: Simplify right side
    10,028.07x = 80,026,084.67
  5. Step 5: Solve for x
    x = 80,026,084.67/10,028.07
  6. Step 6: Final answer
    x = 7,980.21

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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.