Home / 10,015.56-13,820.54-5,539.19

Finding the Fourth Proportional to 10,015.56, 13,820.54 and 5,539.19

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Solution

The fourth proportional to 10,015.56, 13,820.54 and 5,539.19 is: 7,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.56 : 13,820.54 = 5,539.19 : x
  2. Step 2: Convert to fraction form
    10,015.56/13,820.54 = 5,539.19/x
  3. Step 3: Cross multiply
    10,015.56x = 13,820.54 × 5,539.19
  4. Step 4: Simplify right side
    10,015.56x = 76,554,645.36
  5. Step 5: Solve for x
    x = 76,554,645.36/10,015.56
  6. Step 6: Final answer
    x = 7,643.57

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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.