Home / 12,114.96-16,719.84-6,810.72

Finding the Fourth Proportional to 12,114.96, 16,719.84 and 6,810.72

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Solution

The fourth proportional to 12,114.96, 16,719.84 and 6,810.72 is: 9,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.96 : 16,719.84 = 6,810.72 : x
  2. Step 2: Convert to fraction form
    12,114.96/16,719.84 = 6,810.72/x
  3. Step 3: Cross multiply
    12,114.96x = 16,719.84 × 6,810.72
  4. Step 4: Simplify right side
    12,114.96x = 113,874,148.68
  5. Step 5: Solve for x
    x = 113,874,148.68/12,114.96
  6. Step 6: Final answer
    x = 9,399.47

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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.