Home / 9,171.15-13,756.85-2,931.14

Finding the Fourth Proportional to 9,171.15, 13,756.85 and 2,931.14

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Solution

The fourth proportional to 9,171.15, 13,756.85 and 2,931.14 is: 4,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.15 : 13,756.85 = 2,931.14 : x
  2. Step 2: Convert to fraction form
    9,171.15/13,756.85 = 2,931.14/x
  3. Step 3: Cross multiply
    9,171.15x = 13,756.85 × 2,931.14
  4. Step 4: Simplify right side
    9,171.15x = 40,323,169.87
  5. Step 5: Solve for x
    x = 40,323,169.87/9,171.15
  6. Step 6: Final answer
    x = 4,396.74

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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.