Home / 13,975.13-20,957.61-7,654.70

Finding the Fourth Proportional to 13,975.13, 20,957.61 and 7,654.70

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Solution

The fourth proportional to 13,975.13, 20,957.61 and 7,654.70 is: 11,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.13 : 20,957.61 = 7,654.70 : x
  2. Step 2: Convert to fraction form
    13,975.13/20,957.61 = 7,654.70/x
  3. Step 3: Cross multiply
    13,975.13x = 20,957.61 × 7,654.70
  4. Step 4: Simplify right side
    13,975.13x = 160,424,269.66
  5. Step 5: Solve for x
    x = 160,424,269.66/13,975.13
  6. Step 6: Final answer
    x = 11,479.27

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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.