Home / 18,621.74-25,694.32-10,445.60

Finding the Fourth Proportional to 18,621.74, 25,694.32 and 10,445.60

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Solution

The fourth proportional to 18,621.74, 25,694.32 and 10,445.60 is: 14,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.74 : 25,694.32 = 10,445.60 : x
  2. Step 2: Convert to fraction form
    18,621.74/25,694.32 = 10,445.60/x
  3. Step 3: Cross multiply
    18,621.74x = 25,694.32 × 10,445.60
  4. Step 4: Simplify right side
    18,621.74x = 268,392,588.99
  5. Step 5: Solve for x
    x = 268,392,588.99/18,621.74
  6. Step 6: Final answer
    x = 14,412.86

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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.