Home / 13,076.52-18,045.75-7,108.26

Finding the Fourth Proportional to 13,076.52, 18,045.75 and 7,108.26

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Solution

The fourth proportional to 13,076.52, 18,045.75 and 7,108.26 is: 9,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.52 : 18,045.75 = 7,108.26 : x
  2. Step 2: Convert to fraction form
    13,076.52/18,045.75 = 7,108.26/x
  3. Step 3: Cross multiply
    13,076.52x = 18,045.75 × 7,108.26
  4. Step 4: Simplify right side
    13,076.52x = 128,273,882.90
  5. Step 5: Solve for x
    x = 128,273,882.90/13,076.52
  6. Step 6: Final answer
    x = 9,809.48

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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.