Home / 19,813.52-27,342.70-10,861.34

Finding the Fourth Proportional to 19,813.52, 27,342.70 and 10,861.34

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Solution

The fourth proportional to 19,813.52, 27,342.70 and 10,861.34 is: 14,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.52 : 27,342.70 = 10,861.34 : x
  2. Step 2: Convert to fraction form
    19,813.52/27,342.70 = 10,861.34/x
  3. Step 3: Cross multiply
    19,813.52x = 27,342.70 × 10,861.34
  4. Step 4: Simplify right side
    19,813.52x = 296,978,361.22
  5. Step 5: Solve for x
    x = 296,978,361.22/19,813.52
  6. Step 6: Final answer
    x = 14,988.67

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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.