Home / 12,554.39-18,810.32-8,334.70

Finding the Fourth Proportional to 12,554.39, 18,810.32 and 8,334.70

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Solution

The fourth proportional to 12,554.39, 18,810.32 and 8,334.70 is: 12,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.39 : 18,810.32 = 8,334.70 : x
  2. Step 2: Convert to fraction form
    12,554.39/18,810.32 = 8,334.70/x
  3. Step 3: Cross multiply
    12,554.39x = 18,810.32 × 8,334.70
  4. Step 4: Simplify right side
    12,554.39x = 156,778,374.10
  5. Step 5: Solve for x
    x = 156,778,374.10/12,554.39
  6. Step 6: Final answer
    x = 12,487.93

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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.