Home / 13,995.90-20,988.99-4,132.53

Finding the Fourth Proportional to 13,995.90, 20,988.99 and 4,132.53

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Solution

The fourth proportional to 13,995.90, 20,988.99 and 4,132.53 is: 6,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.90 : 20,988.99 = 4,132.53 : x
  2. Step 2: Convert to fraction form
    13,995.90/20,988.99 = 4,132.53/x
  3. Step 3: Cross multiply
    13,995.90x = 20,988.99 × 4,132.53
  4. Step 4: Simplify right side
    13,995.90x = 86,737,630.84
  5. Step 5: Solve for x
    x = 86,737,630.84/13,995.90
  6. Step 6: Final answer
    x = 6,197.36

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1.5x scale

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.