Home / 9,120.12-12,585.71-5,141.26

Finding the Fourth Proportional to 9,120.12, 12,585.71 and 5,141.26

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Solution

The fourth proportional to 9,120.12, 12,585.71 and 5,141.26 is: 7,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.12 : 12,585.71 = 5,141.26 : x
  2. Step 2: Convert to fraction form
    9,120.12/12,585.71 = 5,141.26/x
  3. Step 3: Cross multiply
    9,120.12x = 12,585.71 × 5,141.26
  4. Step 4: Simplify right side
    9,120.12x = 64,706,407.39
  5. Step 5: Solve for x
    x = 64,706,407.39/9,120.12
  6. Step 6: Final answer
    x = 7,094.91

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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.