Home / 15,582.29-21,504.02-8,509.17

Finding the Fourth Proportional to 15,582.29, 21,504.02 and 8,509.17

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Solution

The fourth proportional to 15,582.29, 21,504.02 and 8,509.17 is: 11,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.29 : 21,504.02 = 8,509.17 : x
  2. Step 2: Convert to fraction form
    15,582.29/21,504.02 = 8,509.17/x
  3. Step 3: Cross multiply
    15,582.29x = 21,504.02 × 8,509.17
  4. Step 4: Simplify right side
    15,582.29x = 182,981,361.86
  5. Step 5: Solve for x
    x = 182,981,361.86/15,582.29
  6. Step 6: Final answer
    x = 11,742.91

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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.