Home / 18,826.56-25,980-10,443.84

Finding the Fourth Proportional to 18,826.56, 25,980 and 10,443.84

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Solution

The fourth proportional to 18,826.56, 25,980 and 10,443.84 is: 14,412.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.56 : 25,980 = 10,443.84 : x
  2. Step 2: Convert to fraction form
    18,826.56/25,980 = 10,443.84/x
  3. Step 3: Cross multiply
    18,826.56x = 25,980 × 10,443.84
  4. Step 4: Simplify right side
    18,826.56x = 271,330,963.20
  5. Step 5: Solve for x
    x = 271,330,963.20/18,826.56
  6. Step 6: Final answer
    x = 14,412.14

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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.