Home / 10,503.61-15,749.94-3,107.07

Finding the Fourth Proportional to 10,503.61, 15,749.94 and 3,107.07

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Solution

The fourth proportional to 10,503.61, 15,749.94 and 3,107.07 is: 4,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.61 : 15,749.94 = 3,107.07 : x
  2. Step 2: Convert to fraction form
    10,503.61/15,749.94 = 3,107.07/x
  3. Step 3: Cross multiply
    10,503.61x = 15,749.94 × 3,107.07
  4. Step 4: Simplify right side
    10,503.61x = 48,936,133.43
  5. Step 5: Solve for x
    x = 48,936,133.43/10,503.61
  6. Step 6: Final answer
    x = 4,658.98

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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.