Home / 14,435.93-21,667.52-7,420.87

Finding the Fourth Proportional to 14,435.93, 21,667.52 and 7,420.87

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Solution

The fourth proportional to 14,435.93, 21,667.52 and 7,420.87 is: 11,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.93 : 21,667.52 = 7,420.87 : x
  2. Step 2: Convert to fraction form
    14,435.93/21,667.52 = 7,420.87/x
  3. Step 3: Cross multiply
    14,435.93x = 21,667.52 × 7,420.87
  4. Step 4: Simplify right side
    14,435.93x = 160,791,849.14
  5. Step 5: Solve for x
    x = 160,791,849.14/14,435.93
  6. Step 6: Final answer
    x = 11,138.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.