Home / 14,077.52-19,425.96-7,790

Finding the Fourth Proportional to 14,077.52, 19,425.96 and 7,790

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Solution

The fourth proportional to 14,077.52, 19,425.96 and 7,790 is: 10,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.52 : 19,425.96 = 7,790 : x
  2. Step 2: Convert to fraction form
    14,077.52/19,425.96 = 7,790/x
  3. Step 3: Cross multiply
    14,077.52x = 19,425.96 × 7,790
  4. Step 4: Simplify right side
    14,077.52x = 151,328,228.40
  5. Step 5: Solve for x
    x = 151,328,228.40/14,077.52
  6. Step 6: Final answer
    x = 10,749.64

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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.