Home / 15,297.96-21,116.45-9,642.25

Finding the Fourth Proportional to 15,297.96, 21,116.45 and 9,642.25

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Solution

The fourth proportional to 15,297.96, 21,116.45 and 9,642.25 is: 13,309.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.96 : 21,116.45 = 9,642.25 : x
  2. Step 2: Convert to fraction form
    15,297.96/21,116.45 = 9,642.25/x
  3. Step 3: Cross multiply
    15,297.96x = 21,116.45 × 9,642.25
  4. Step 4: Simplify right side
    15,297.96x = 203,610,061.33
  5. Step 5: Solve for x
    x = 203,610,061.33/15,297.96
  6. Step 6: Final answer
    x = 13,309.62

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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.