Home / 18,216.10-25,138.31-10,258.46

Finding the Fourth Proportional to 18,216.10, 25,138.31 and 10,258.46

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Solution

The fourth proportional to 18,216.10, 25,138.31 and 10,258.46 is: 14,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.10 : 25,138.31 = 10,258.46 : x
  2. Step 2: Convert to fraction form
    18,216.10/25,138.31 = 10,258.46/x
  3. Step 3: Cross multiply
    18,216.10x = 25,138.31 × 10,258.46
  4. Step 4: Simplify right side
    18,216.10x = 257,880,347.60
  5. Step 5: Solve for x
    x = 257,880,347.60/18,216.10
  6. Step 6: Final answer
    x = 14,156.73

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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.