Home / 9,143.04-13,731.20-8,771.84

Finding the Fourth Proportional to 9,143.04, 13,731.20 and 8,771.84

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Solution

The fourth proportional to 9,143.04, 13,731.20 and 8,771.84 is: 13,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.04 : 13,731.20 = 8,771.84 : x
  2. Step 2: Convert to fraction form
    9,143.04/13,731.20 = 8,771.84/x
  3. Step 3: Cross multiply
    9,143.04x = 13,731.20 × 8,771.84
  4. Step 4: Simplify right side
    9,143.04x = 120,447,889.41
  5. Step 5: Solve for x
    x = 120,447,889.41/9,143.04
  6. Step 6: Final answer
    x = 13,173.72

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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.