Home / 10,015.12-13,821.08-5,539.18

Finding the Fourth Proportional to 10,015.12, 13,821.08 and 5,539.18

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Solution

The fourth proportional to 10,015.12, 13,821.08 and 5,539.18 is: 7,644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.12 : 13,821.08 = 5,539.18 : x
  2. Step 2: Convert to fraction form
    10,015.12/13,821.08 = 5,539.18/x
  3. Step 3: Cross multiply
    10,015.12x = 13,821.08 × 5,539.18
  4. Step 4: Simplify right side
    10,015.12x = 76,557,449.91
  5. Step 5: Solve for x
    x = 76,557,449.91/10,015.12
  6. Step 6: Final answer
    x = 7,644.19

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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.