Home / 17,385.66-26,080.02-4,905.78

Finding the Fourth Proportional to 17,385.66, 26,080.02 and 4,905.78

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Solution

The fourth proportional to 17,385.66, 26,080.02 and 4,905.78 is: 7,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.66 : 26,080.02 = 4,905.78 : x
  2. Step 2: Convert to fraction form
    17,385.66/26,080.02 = 4,905.78/x
  3. Step 3: Cross multiply
    17,385.66x = 26,080.02 × 4,905.78
  4. Step 4: Simplify right side
    17,385.66x = 127,942,840.52
  5. Step 5: Solve for x
    x = 127,942,840.52/17,385.66
  6. Step 6: Final answer
    x = 7,359.10

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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.