Home / 13,336.67-18,396.47-8,555.00

Finding the Fourth Proportional to 13,336.67, 18,396.47 and 8,555.00

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Solution

The fourth proportional to 13,336.67, 18,396.47 and 8,555.00 is: 11,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.67 : 18,396.47 = 8,555.00 : x
  2. Step 2: Convert to fraction form
    13,336.67/18,396.47 = 8,555.00/x
  3. Step 3: Cross multiply
    13,336.67x = 18,396.47 × 8,555.00
  4. Step 4: Simplify right side
    13,336.67x = 157,381,785.61
  5. Step 5: Solve for x
    x = 157,381,785.61/13,336.67
  6. Step 6: Final answer
    x = 11,800.68

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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.