Home / 13,635.69-18,818.67-8,334.05

Finding the Fourth Proportional to 13,635.69, 18,818.67 and 8,334.05

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Solution

The fourth proportional to 13,635.69, 18,818.67 and 8,334.05 is: 11,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.69 : 18,818.67 = 8,334.05 : x
  2. Step 2: Convert to fraction form
    13,635.69/18,818.67 = 8,334.05/x
  3. Step 3: Cross multiply
    13,635.69x = 18,818.67 × 8,334.05
  4. Step 4: Simplify right side
    13,635.69x = 156,835,642.62
  5. Step 5: Solve for x
    x = 156,835,642.62/13,635.69
  6. Step 6: Final answer
    x = 11,501.85

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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.