Home / 11,079.90-15,289.14-6,830.28

Finding the Fourth Proportional to 11,079.90, 15,289.14 and 6,830.28

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Solution

The fourth proportional to 11,079.90, 15,289.14 and 6,830.28 is: 9,425.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.90 : 15,289.14 = 6,830.28 : x
  2. Step 2: Convert to fraction form
    11,079.90/15,289.14 = 6,830.28/x
  3. Step 3: Cross multiply
    11,079.90x = 15,289.14 × 6,830.28
  4. Step 4: Simplify right side
    11,079.90x = 104,429,107.16
  5. Step 5: Solve for x
    x = 104,429,107.16/11,079.90
  6. Step 6: Final answer
    x = 9,425.09

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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.