Home / 8,685.40-13,024.86-3,489.52

Finding the Fourth Proportional to 8,685.40, 13,024.86 and 3,489.52

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Solution

The fourth proportional to 8,685.40, 13,024.86 and 3,489.52 is: 5,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.40 : 13,024.86 = 3,489.52 : x
  2. Step 2: Convert to fraction form
    8,685.40/13,024.86 = 3,489.52/x
  3. Step 3: Cross multiply
    8,685.40x = 13,024.86 × 3,489.52
  4. Step 4: Simplify right side
    8,685.40x = 45,450,509.47
  5. Step 5: Solve for x
    x = 45,450,509.47/8,685.40
  6. Step 6: Final answer
    x = 5,232.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.