Home / 13,990.26-20,988.48-4,633.20

Finding the Fourth Proportional to 13,990.26, 20,988.48 and 4,633.20

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Solution

The fourth proportional to 13,990.26, 20,988.48 and 4,633.20 is: 6,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.26 : 20,988.48 = 4,633.20 : x
  2. Step 2: Convert to fraction form
    13,990.26/20,988.48 = 4,633.20/x
  3. Step 3: Cross multiply
    13,990.26x = 20,988.48 × 4,633.20
  4. Step 4: Simplify right side
    13,990.26x = 97,243,825.54
  5. Step 5: Solve for x
    x = 97,243,825.54/13,990.26
  6. Step 6: Final answer
    x = 6,950.82

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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.