Home / 13,450.89-18,554.64-8,071.95

Finding the Fourth Proportional to 13,450.89, 18,554.64 and 8,071.95

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Solution

The fourth proportional to 13,450.89, 18,554.64 and 8,071.95 is: 11,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.89 : 18,554.64 = 8,071.95 : x
  2. Step 2: Convert to fraction form
    13,450.89/18,554.64 = 8,071.95/x
  3. Step 3: Cross multiply
    13,450.89x = 18,554.64 × 8,071.95
  4. Step 4: Simplify right side
    13,450.89x = 149,772,126.35
  5. Step 5: Solve for x
    x = 149,772,126.35/13,450.89
  6. Step 6: Final answer
    x = 11,134.74

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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.