Home / 9,173.80-12,660.48-6,931.72

Finding the Fourth Proportional to 9,173.80, 12,660.48 and 6,931.72

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Solution

The fourth proportional to 9,173.80, 12,660.48 and 6,931.72 is: 9,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.80 : 12,660.48 = 6,931.72 : x
  2. Step 2: Convert to fraction form
    9,173.80/12,660.48 = 6,931.72/x
  3. Step 3: Cross multiply
    9,173.80x = 12,660.48 × 6,931.72
  4. Step 4: Simplify right side
    9,173.80x = 87,758,902.43
  5. Step 5: Solve for x
    x = 87,758,902.43/9,173.80
  6. Step 6: Final answer
    x = 9,566.25

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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.