Home / 12,917.02-17,825.80-7,328.02

Finding the Fourth Proportional to 12,917.02, 17,825.80 and 7,328.02

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Solution

The fourth proportional to 12,917.02, 17,825.80 and 7,328.02 is: 10,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.02 : 17,825.80 = 7,328.02 : x
  2. Step 2: Convert to fraction form
    12,917.02/17,825.80 = 7,328.02/x
  3. Step 3: Cross multiply
    12,917.02x = 17,825.80 × 7,328.02
  4. Step 4: Simplify right side
    12,917.02x = 130,627,818.92
  5. Step 5: Solve for x
    x = 130,627,818.92/12,917.02
  6. Step 6: Final answer
    x = 10,112.84

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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.