Home / 7,547.37-11,311.47-3,387.21

Finding the Fourth Proportional to 7,547.37, 11,311.47 and 3,387.21

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Solution

The fourth proportional to 7,547.37, 11,311.47 and 3,387.21 is: 5,076.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.37 : 11,311.47 = 3,387.21 : x
  2. Step 2: Convert to fraction form
    7,547.37/11,311.47 = 3,387.21/x
  3. Step 3: Cross multiply
    7,547.37x = 11,311.47 × 3,387.21
  4. Step 4: Simplify right side
    7,547.37x = 38,314,324.30
  5. Step 5: Solve for x
    x = 38,314,324.30/7,547.37
  6. Step 6: Final answer
    x = 5,076.51

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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.