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Finding the Fourth Proportional to 9,245.79, 13,838.31 and 8,359.65

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Solution

The fourth proportional to 9,245.79, 13,838.31 and 8,359.65 is: 12,512.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.79 : 13,838.31 = 8,359.65 : x
  2. Step 2: Convert to fraction form
    9,245.79/13,838.31 = 8,359.65/x
  3. Step 3: Cross multiply
    9,245.79x = 13,838.31 × 8,359.65
  4. Step 4: Simplify right side
    9,245.79x = 115,683,428.19
  5. Step 5: Solve for x
    x = 115,683,428.19/9,245.79
  6. Step 6: Final answer
    x = 12,512.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.