Home / 13,861.54-19,128.75-7,573.90

Finding the Fourth Proportional to 13,861.54, 19,128.75 and 7,573.90

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Solution

The fourth proportional to 13,861.54, 19,128.75 and 7,573.90 is: 10,451.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.54 : 19,128.75 = 7,573.90 : x
  2. Step 2: Convert to fraction form
    13,861.54/19,128.75 = 7,573.90/x
  3. Step 3: Cross multiply
    13,861.54x = 19,128.75 × 7,573.90
  4. Step 4: Simplify right side
    13,861.54x = 144,879,239.63
  5. Step 5: Solve for x
    x = 144,879,239.63/13,861.54
  6. Step 6: Final answer
    x = 10,451.89

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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.