Home / 13,370.94-18,451.80-8,068.68

Finding the Fourth Proportional to 13,370.94, 18,451.80 and 8,068.68

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Solution

The fourth proportional to 13,370.94, 18,451.80 and 8,068.68 is: 11,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.94 : 18,451.80 = 8,068.68 : x
  2. Step 2: Convert to fraction form
    13,370.94/18,451.80 = 8,068.68/x
  3. Step 3: Cross multiply
    13,370.94x = 18,451.80 × 8,068.68
  4. Step 4: Simplify right side
    13,370.94x = 148,881,669.62
  5. Step 5: Solve for x
    x = 148,881,669.62/13,370.94
  6. Step 6: Final answer
    x = 11,134.72

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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.