Home / 18,216.28-25,139.06-10,258.64

Finding the Fourth Proportional to 18,216.28, 25,139.06 and 10,258.64

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Solution

The fourth proportional to 18,216.28, 25,139.06 and 10,258.64 is: 14,157.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.28 : 25,139.06 = 10,258.64 : x
  2. Step 2: Convert to fraction form
    18,216.28/25,139.06 = 10,258.64/x
  3. Step 3: Cross multiply
    18,216.28x = 25,139.06 × 10,258.64
  4. Step 4: Simplify right side
    18,216.28x = 257,892,566.48
  5. Step 5: Solve for x
    x = 257,892,566.48/18,216.28
  6. Step 6: Final answer
    x = 14,157.26

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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.