Home / 10,015.26-13,820.81-5,538.90

Finding the Fourth Proportional to 10,015.26, 13,820.81 and 5,538.90

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Solution

The fourth proportional to 10,015.26, 13,820.81 and 5,538.90 is: 7,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.26 : 13,820.81 = 5,538.90 : x
  2. Step 2: Convert to fraction form
    10,015.26/13,820.81 = 5,538.90/x
  3. Step 3: Cross multiply
    10,015.26x = 13,820.81 × 5,538.90
  4. Step 4: Simplify right side
    10,015.26x = 76,552,056.81
  5. Step 5: Solve for x
    x = 76,552,056.81/10,015.26
  6. Step 6: Final answer
    x = 7,643.54

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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.