Home / 13,317.06-18,376.40-7,649.96

Finding the Fourth Proportional to 13,317.06, 18,376.40 and 7,649.96

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Solution

The fourth proportional to 13,317.06, 18,376.40 and 7,649.96 is: 10,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.06 : 18,376.40 = 7,649.96 : x
  2. Step 2: Convert to fraction form
    13,317.06/18,376.40 = 7,649.96/x
  3. Step 3: Cross multiply
    13,317.06x = 18,376.40 × 7,649.96
  4. Step 4: Simplify right side
    13,317.06x = 140,578,724.94
  5. Step 5: Solve for x
    x = 140,578,724.94/13,317.06
  6. Step 6: Final answer
    x = 10,556.29

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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.