Home / 13,391.89-20,089.58-4,957.25

Finding the Fourth Proportional to 13,391.89, 20,089.58 and 4,957.25

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Solution

The fourth proportional to 13,391.89, 20,089.58 and 4,957.25 is: 7,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.89 : 20,089.58 = 4,957.25 : x
  2. Step 2: Convert to fraction form
    13,391.89/20,089.58 = 4,957.25/x
  3. Step 3: Cross multiply
    13,391.89x = 20,089.58 × 4,957.25
  4. Step 4: Simplify right side
    13,391.89x = 99,589,070.46
  5. Step 5: Solve for x
    x = 99,589,070.46/13,391.89
  6. Step 6: Final answer
    x = 7,436.52

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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.