Home / 7,647.12-10,553.16-4,289.94

Finding the Fourth Proportional to 7,647.12, 10,553.16 and 4,289.94

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Solution

The fourth proportional to 7,647.12, 10,553.16 and 4,289.94 is: 5,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.12 : 10,553.16 = 4,289.94 : x
  2. Step 2: Convert to fraction form
    7,647.12/10,553.16 = 4,289.94/x
  3. Step 3: Cross multiply
    7,647.12x = 10,553.16 × 4,289.94
  4. Step 4: Simplify right side
    7,647.12x = 45,272,423.21
  5. Step 5: Solve for x
    x = 45,272,423.21/7,647.12
  6. Step 6: Final answer
    x = 5,920.19

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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.