Home / 14,179.26-19,564.56-7,890.42

Finding the Fourth Proportional to 14,179.26, 19,564.56 and 7,890.42

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Solution

The fourth proportional to 14,179.26, 19,564.56 and 7,890.42 is: 10,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.26 : 19,564.56 = 7,890.42 : x
  2. Step 2: Convert to fraction form
    14,179.26/19,564.56 = 7,890.42/x
  3. Step 3: Cross multiply
    14,179.26x = 19,564.56 × 7,890.42
  4. Step 4: Simplify right side
    14,179.26x = 154,372,595.52
  5. Step 5: Solve for x
    x = 154,372,595.52/14,179.26
  6. Step 6: Final answer
    x = 10,887.21

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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.