Home / 9,274.40-13,911.60-5,112.80

Finding the Fourth Proportional to 9,274.40, 13,911.60 and 5,112.80

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Solution

The fourth proportional to 9,274.40, 13,911.60 and 5,112.80 is: 7,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274.40 : 13,911.60 = 5,112.80 : x
  2. Step 2: Convert to fraction form
    9,274.40/13,911.60 = 5,112.80/x
  3. Step 3: Cross multiply
    9,274.40x = 13,911.60 × 5,112.80
  4. Step 4: Simplify right side
    9,274.40x = 71,127,228.48
  5. Step 5: Solve for x
    x = 71,127,228.48/9,274.40
  6. Step 6: Final answer
    x = 7,669.20

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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.