Home / 7,474.48-10,315.51-5,582.78

Finding the Fourth Proportional to 7,474.48, 10,315.51 and 5,582.78

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Solution

The fourth proportional to 7,474.48, 10,315.51 and 5,582.78 is: 7,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.48 : 10,315.51 = 5,582.78 : x
  2. Step 2: Convert to fraction form
    7,474.48/10,315.51 = 5,582.78/x
  3. Step 3: Cross multiply
    7,474.48x = 10,315.51 × 5,582.78
  4. Step 4: Simplify right side
    7,474.48x = 57,589,157.38
  5. Step 5: Solve for x
    x = 57,589,157.38/7,474.48
  6. Step 6: Final answer
    x = 7,704.77

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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.