Home / 14,309.82-21,460.62-4,947.40

Finding the Fourth Proportional to 14,309.82, 21,460.62 and 4,947.40

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Solution

The fourth proportional to 14,309.82, 21,460.62 and 4,947.40 is: 7,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.82 : 21,460.62 = 4,947.40 : x
  2. Step 2: Convert to fraction form
    14,309.82/21,460.62 = 4,947.40/x
  3. Step 3: Cross multiply
    14,309.82x = 21,460.62 × 4,947.40
  4. Step 4: Simplify right side
    14,309.82x = 106,174,271.39
  5. Step 5: Solve for x
    x = 106,174,271.39/14,309.82
  6. Step 6: Final answer
    x = 7,419.68

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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.