Home / 18,685.20-25,785.32-10,301.60

Finding the Fourth Proportional to 18,685.20, 25,785.32 and 10,301.60

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Solution

The fourth proportional to 18,685.20, 25,785.32 and 10,301.60 is: 14,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.20 : 25,785.32 = 10,301.60 : x
  2. Step 2: Convert to fraction form
    18,685.20/25,785.32 = 10,301.60/x
  3. Step 3: Cross multiply
    18,685.20x = 25,785.32 × 10,301.60
  4. Step 4: Simplify right side
    18,685.20x = 265,630,052.51
  5. Step 5: Solve for x
    x = 265,630,052.51/18,685.20
  6. Step 6: Final answer
    x = 14,216.07

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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.