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Finding the Fourth Proportional to 12,374.56, 18,554.64 and 8,210.08

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Solution

The fourth proportional to 12,374.56, 18,554.64 and 8,210.08 is: 12,310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.56 : 18,554.64 = 8,210.08 : x
  2. Step 2: Convert to fraction form
    12,374.56/18,554.64 = 8,210.08/x
  3. Step 3: Cross multiply
    12,374.56x = 18,554.64 × 8,210.08
  4. Step 4: Simplify right side
    12,374.56x = 152,335,078.77
  5. Step 5: Solve for x
    x = 152,335,078.77/12,374.56
  6. Step 6: Final answer
    x = 12,310.34

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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.