Home / 8,931.21-13,401.27-3,670.12

Finding the Fourth Proportional to 8,931.21, 13,401.27 and 3,670.12

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Solution

The fourth proportional to 8,931.21, 13,401.27 and 3,670.12 is: 5,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.21 : 13,401.27 = 3,670.12 : x
  2. Step 2: Convert to fraction form
    8,931.21/13,401.27 = 3,670.12/x
  3. Step 3: Cross multiply
    8,931.21x = 13,401.27 × 3,670.12
  4. Step 4: Simplify right side
    8,931.21x = 49,184,269.05
  5. Step 5: Solve for x
    x = 49,184,269.05/8,931.21
  6. Step 6: Final answer
    x = 5,507.01

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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.