Home / 9,133.20-13,683.60-7,480.80

Finding the Fourth Proportional to 9,133.20, 13,683.60 and 7,480.80

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Solution

The fourth proportional to 9,133.20, 13,683.60 and 7,480.80 is: 11,207.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,133.20 : 13,683.60 = 7,480.80 : x
  2. Step 2: Convert to fraction form
    9,133.20/13,683.60 = 7,480.80/x
  3. Step 3: Cross multiply
    9,133.20x = 13,683.60 × 7,480.80
  4. Step 4: Simplify right side
    9,133.20x = 102,364,274.88
  5. Step 5: Solve for x
    x = 102,364,274.88/9,133.20
  6. Step 6: Final answer
    x = 11,207.93

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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.