Home / 11,364.04-17,043.36-5,120.20

Finding the Fourth Proportional to 11,364.04, 17,043.36 and 5,120.20

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Solution

The fourth proportional to 11,364.04, 17,043.36 and 5,120.20 is: 7,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,364.04 : 17,043.36 = 5,120.20 : x
  2. Step 2: Convert to fraction form
    11,364.04/17,043.36 = 5,120.20/x
  3. Step 3: Cross multiply
    11,364.04x = 17,043.36 × 5,120.20
  4. Step 4: Simplify right side
    11,364.04x = 87,265,411.87
  5. Step 5: Solve for x
    x = 87,265,411.87/11,364.04
  6. Step 6: Final answer
    x = 7,679.08

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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.