Home / 18,618.24-25,693.38-10,120.35

Finding the Fourth Proportional to 18,618.24, 25,693.38 and 10,120.35

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Solution

The fourth proportional to 18,618.24, 25,693.38 and 10,120.35 is: 13,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.24 : 25,693.38 = 10,120.35 : x
  2. Step 2: Convert to fraction form
    18,618.24/25,693.38 = 10,120.35/x
  3. Step 3: Cross multiply
    18,618.24x = 25,693.38 × 10,120.35
  4. Step 4: Simplify right side
    18,618.24x = 260,025,998.28
  5. Step 5: Solve for x
    x = 260,025,998.28/18,618.24
  6. Step 6: Final answer
    x = 13,966.20

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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.