Home / 15,941.37-21,990.78-10,274.61

Finding the Fourth Proportional to 15,941.37, 21,990.78 and 10,274.61

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Solution

The fourth proportional to 15,941.37, 21,990.78 and 10,274.61 is: 14,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.37 : 21,990.78 = 10,274.61 : x
  2. Step 2: Convert to fraction form
    15,941.37/21,990.78 = 10,274.61/x
  3. Step 3: Cross multiply
    15,941.37x = 21,990.78 × 10,274.61
  4. Step 4: Simplify right side
    15,941.37x = 225,946,688.10
  5. Step 5: Solve for x
    x = 225,946,688.10/15,941.37
  6. Step 6: Final answer
    x = 14,173.61

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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.