Home / 13,000.98-17,939.34-7,335.28

Finding the Fourth Proportional to 13,000.98, 17,939.34 and 7,335.28

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Solution

The fourth proportional to 13,000.98, 17,939.34 and 7,335.28 is: 10,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.98 : 17,939.34 = 7,335.28 : x
  2. Step 2: Convert to fraction form
    13,000.98/17,939.34 = 7,335.28/x
  3. Step 3: Cross multiply
    13,000.98x = 17,939.34 × 7,335.28
  4. Step 4: Simplify right side
    13,000.98x = 131,590,081.92
  5. Step 5: Solve for x
    x = 131,590,081.92/13,000.98
  6. Step 6: Final answer
    x = 10,121.55

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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.