Home / 8,985.42-13,480.75-2,660.47

Finding the Fourth Proportional to 8,985.42, 13,480.75 and 2,660.47

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Solution

The fourth proportional to 8,985.42, 13,480.75 and 2,660.47 is: 3,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.42 : 13,480.75 = 2,660.47 : x
  2. Step 2: Convert to fraction form
    8,985.42/13,480.75 = 2,660.47/x
  3. Step 3: Cross multiply
    8,985.42x = 13,480.75 × 2,660.47
  4. Step 4: Simplify right side
    8,985.42x = 35,865,130.95
  5. Step 5: Solve for x
    x = 35,865,130.95/8,985.42
  6. Step 6: Final answer
    x = 3,991.48

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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.