Home / 18,138.64-25,030.56-10,585.12

Finding the Fourth Proportional to 18,138.64, 25,030.56 and 10,585.12

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Solution

The fourth proportional to 18,138.64, 25,030.56 and 10,585.12 is: 14,607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.64 : 25,030.56 = 10,585.12 : x
  2. Step 2: Convert to fraction form
    18,138.64/25,030.56 = 10,585.12/x
  3. Step 3: Cross multiply
    18,138.64x = 25,030.56 × 10,585.12
  4. Step 4: Simplify right side
    18,138.64x = 264,951,481.27
  5. Step 5: Solve for x
    x = 264,951,481.27/18,138.64
  6. Step 6: Final answer
    x = 14,607.02

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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.