Home / 18,604.16-25,680.48-12,318.56

Finding the Fourth Proportional to 18,604.16, 25,680.48 and 12,318.56

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Solution

The fourth proportional to 18,604.16, 25,680.48 and 12,318.56 is: 17,004.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.16 : 25,680.48 = 12,318.56 : x
  2. Step 2: Convert to fraction form
    18,604.16/25,680.48 = 12,318.56/x
  3. Step 3: Cross multiply
    18,604.16x = 25,680.48 × 12,318.56
  4. Step 4: Simplify right side
    18,604.16x = 316,346,533.71
  5. Step 5: Solve for x
    x = 316,346,533.71/18,604.16
  6. Step 6: Final answer
    x = 17,004.08

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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.