Home / 15,744.89-21,730.01-9,029.21

Finding the Fourth Proportional to 15,744.89, 21,730.01 and 9,029.21

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Solution

The fourth proportional to 15,744.89, 21,730.01 and 9,029.21 is: 12,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.89 : 21,730.01 = 9,029.21 : x
  2. Step 2: Convert to fraction form
    15,744.89/21,730.01 = 9,029.21/x
  3. Step 3: Cross multiply
    15,744.89x = 21,730.01 × 9,029.21
  4. Step 4: Simplify right side
    15,744.89x = 196,204,669.80
  5. Step 5: Solve for x
    x = 196,204,669.80/15,744.89
  6. Step 6: Final answer
    x = 12,461.48

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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.