Home / 13,516.30-18,654.15-7,849.81

Finding the Fourth Proportional to 13,516.30, 18,654.15 and 7,849.81

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Solution

The fourth proportional to 13,516.30, 18,654.15 and 7,849.81 is: 10,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.30 : 18,654.15 = 7,849.81 : x
  2. Step 2: Convert to fraction form
    13,516.30/18,654.15 = 7,849.81/x
  3. Step 3: Cross multiply
    13,516.30x = 18,654.15 × 7,849.81
  4. Step 4: Simplify right side
    13,516.30x = 146,431,533.21
  5. Step 5: Solve for x
    x = 146,431,533.21/13,516.30
  6. Step 6: Final answer
    x = 10,833.70

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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.