Home / 9,128.19-13,693.25-2,889.07

Finding the Fourth Proportional to 9,128.19, 13,693.25 and 2,889.07

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Solution

The fourth proportional to 9,128.19, 13,693.25 and 2,889.07 is: 4,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.19 : 13,693.25 = 2,889.07 : x
  2. Step 2: Convert to fraction form
    9,128.19/13,693.25 = 2,889.07/x
  3. Step 3: Cross multiply
    9,128.19x = 13,693.25 × 2,889.07
  4. Step 4: Simplify right side
    9,128.19x = 39,560,730.77
  5. Step 5: Solve for x
    x = 39,560,730.77/9,128.19
  6. Step 6: Final answer
    x = 4,333.91

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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.