Home / 13,539.24-18,684.86-7,570.58

Finding the Fourth Proportional to 13,539.24, 18,684.86 and 7,570.58

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Solution

The fourth proportional to 13,539.24, 18,684.86 and 7,570.58 is: 10,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.24 : 18,684.86 = 7,570.58 : x
  2. Step 2: Convert to fraction form
    13,539.24/18,684.86 = 7,570.58/x
  3. Step 3: Cross multiply
    13,539.24x = 18,684.86 × 7,570.58
  4. Step 4: Simplify right side
    13,539.24x = 141,455,096.14
  5. Step 5: Solve for x
    x = 141,455,096.14/13,539.24
  6. Step 6: Final answer
    x = 10,447.79

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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.