Home / 9,521.70-13,126.42-6,999.36

Finding the Fourth Proportional to 9,521.70, 13,126.42 and 6,999.36

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Solution

The fourth proportional to 9,521.70, 13,126.42 and 6,999.36 is: 9,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.70 : 13,126.42 = 6,999.36 : x
  2. Step 2: Convert to fraction form
    9,521.70/13,126.42 = 6,999.36/x
  3. Step 3: Cross multiply
    9,521.70x = 13,126.42 × 6,999.36
  4. Step 4: Simplify right side
    9,521.70x = 91,876,539.09
  5. Step 5: Solve for x
    x = 91,876,539.09/9,521.70
  6. Step 6: Final answer
    x = 9,649.17

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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.