Home / 9,279.48-12,808.14-5,740.68

Finding the Fourth Proportional to 9,279.48, 12,808.14 and 5,740.68

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Solution

The fourth proportional to 9,279.48, 12,808.14 and 5,740.68 is: 7,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.48 : 12,808.14 = 5,740.68 : x
  2. Step 2: Convert to fraction form
    9,279.48/12,808.14 = 5,740.68/x
  3. Step 3: Cross multiply
    9,279.48x = 12,808.14 × 5,740.68
  4. Step 4: Simplify right side
    9,279.48x = 73,527,433.14
  5. Step 5: Solve for x
    x = 73,527,433.14/9,279.48
  6. Step 6: Final answer
    x = 7,923.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.