Home / 7,548.39-10,405.34-5,306.71

Finding the Fourth Proportional to 7,548.39, 10,405.34 and 5,306.71

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Solution

The fourth proportional to 7,548.39, 10,405.34 and 5,306.71 is: 7,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,548.39 : 10,405.34 = 5,306.71 : x
  2. Step 2: Convert to fraction form
    7,548.39/10,405.34 = 5,306.71/x
  3. Step 3: Cross multiply
    7,548.39x = 10,405.34 × 5,306.71
  4. Step 4: Simplify right side
    7,548.39x = 55,218,121.83
  5. Step 5: Solve for x
    x = 55,218,121.83/7,548.39
  6. Step 6: Final answer
    x = 7,315.22

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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.