Home / 9,330.36-12,875.64-5,138.52

Finding the Fourth Proportional to 9,330.36, 12,875.64 and 5,138.52

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Solution

The fourth proportional to 9,330.36, 12,875.64 and 5,138.52 is: 7,091.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.36 : 12,875.64 = 5,138.52 : x
  2. Step 2: Convert to fraction form
    9,330.36/12,875.64 = 5,138.52/x
  3. Step 3: Cross multiply
    9,330.36x = 12,875.64 × 5,138.52
  4. Step 4: Simplify right side
    9,330.36x = 66,161,733.65
  5. Step 5: Solve for x
    x = 66,161,733.65/9,330.36
  6. Step 6: Final answer
    x = 7,091.02

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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.