Home / 7,647.72-10,553.02-4,289.84

Finding the Fourth Proportional to 7,647.72, 10,553.02 and 4,289.84

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Solution

The fourth proportional to 7,647.72, 10,553.02 and 4,289.84 is: 5,919.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.72 : 10,553.02 = 4,289.84 : x
  2. Step 2: Convert to fraction form
    7,647.72/10,553.02 = 4,289.84/x
  3. Step 3: Cross multiply
    7,647.72x = 10,553.02 × 4,289.84
  4. Step 4: Simplify right side
    7,647.72x = 45,270,767.32
  5. Step 5: Solve for x
    x = 45,270,767.32/7,647.72
  6. Step 6: Final answer
    x = 5,919.51

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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.