Home / 18,219.63-25,143.14-10,564.39

Finding the Fourth Proportional to 18,219.63, 25,143.14 and 10,564.39

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Solution

The fourth proportional to 18,219.63, 25,143.14 and 10,564.39 is: 14,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.63 : 25,143.14 = 10,564.39 : x
  2. Step 2: Convert to fraction form
    18,219.63/25,143.14 = 10,564.39/x
  3. Step 3: Cross multiply
    18,219.63x = 25,143.14 × 10,564.39
  4. Step 4: Simplify right side
    18,219.63x = 265,621,811.07
  5. Step 5: Solve for x
    x = 265,621,811.07/18,219.63
  6. Step 6: Final answer
    x = 14,578.88

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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.