Home / 13,076.67-18,045.43-7,108.19

Finding the Fourth Proportional to 13,076.67, 18,045.43 and 7,108.19

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Solution

The fourth proportional to 13,076.67, 18,045.43 and 7,108.19 is: 9,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.67 : 18,045.43 = 7,108.19 : x
  2. Step 2: Convert to fraction form
    13,076.67/18,045.43 = 7,108.19/x
  3. Step 3: Cross multiply
    13,076.67x = 18,045.43 × 7,108.19
  4. Step 4: Simplify right side
    13,076.67x = 128,270,219.30
  5. Step 5: Solve for x
    x = 128,270,219.30/13,076.67
  6. Step 6: Final answer
    x = 9,809.09

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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.