Home / 15,653.19-21,600.90-8,579.46

Finding the Fourth Proportional to 15,653.19, 21,600.90 and 8,579.46

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Solution

The fourth proportional to 15,653.19, 21,600.90 and 8,579.46 is: 11,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.19 : 21,600.90 = 8,579.46 : x
  2. Step 2: Convert to fraction form
    15,653.19/21,600.90 = 8,579.46/x
  3. Step 3: Cross multiply
    15,653.19x = 21,600.90 × 8,579.46
  4. Step 4: Simplify right side
    15,653.19x = 185,324,057.51
  5. Step 5: Solve for x
    x = 185,324,057.51/15,653.19
  6. Step 6: Final answer
    x = 11,839.38

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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.