Home / 12,313.95-16,998.69-8,982.19

Finding the Fourth Proportional to 12,313.95, 16,998.69 and 8,982.19

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Solution

The fourth proportional to 12,313.95, 16,998.69 and 8,982.19 is: 12,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.95 : 16,998.69 = 8,982.19 : x
  2. Step 2: Convert to fraction form
    12,313.95/16,998.69 = 8,982.19/x
  3. Step 3: Cross multiply
    12,313.95x = 16,998.69 × 8,982.19
  4. Step 4: Simplify right side
    12,313.95x = 152,685,442.48
  5. Step 5: Solve for x
    x = 152,685,442.48/12,313.95
  6. Step 6: Final answer
    x = 12,399.39

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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.