Home / 7,123.07-10,691.16-3,615.54

Finding the Fourth Proportional to 7,123.07, 10,691.16 and 3,615.54

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Solution

The fourth proportional to 7,123.07, 10,691.16 and 3,615.54 is: 5,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.07 : 10,691.16 = 3,615.54 : x
  2. Step 2: Convert to fraction form
    7,123.07/10,691.16 = 3,615.54/x
  3. Step 3: Cross multiply
    7,123.07x = 10,691.16 × 3,615.54
  4. Step 4: Simplify right side
    7,123.07x = 38,654,316.63
  5. Step 5: Solve for x
    x = 38,654,316.63/7,123.07
  6. Step 6: Final answer
    x = 5,426.64

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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.