Home / 15,924.45-21,972.54-9,207.63

Finding the Fourth Proportional to 15,924.45, 21,972.54 and 9,207.63

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Solution

The fourth proportional to 15,924.45, 21,972.54 and 9,207.63 is: 12,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.45 : 21,972.54 = 9,207.63 : x
  2. Step 2: Convert to fraction form
    15,924.45/21,972.54 = 9,207.63/x
  3. Step 3: Cross multiply
    15,924.45x = 21,972.54 × 9,207.63
  4. Step 4: Simplify right side
    15,924.45x = 202,315,018.48
  5. Step 5: Solve for x
    x = 202,315,018.48/15,924.45
  6. Step 6: Final answer
    x = 12,704.68

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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.