Home / 15,142.63-22,685.70-10,972.45

Finding the Fourth Proportional to 15,142.63, 22,685.70 and 10,972.45

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Solution

The fourth proportional to 15,142.63, 22,685.70 and 10,972.45 is: 16,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,142.63 : 22,685.70 = 10,972.45 : x
  2. Step 2: Convert to fraction form
    15,142.63/22,685.70 = 10,972.45/x
  3. Step 3: Cross multiply
    15,142.63x = 22,685.70 × 10,972.45
  4. Step 4: Simplify right side
    15,142.63x = 248,917,708.97
  5. Step 5: Solve for x
    x = 248,917,708.97/15,142.63
  6. Step 6: Final answer
    x = 16,438.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.