Home / 14,309.14-21,460.43-3,921.70

Finding the Fourth Proportional to 14,309.14, 21,460.43 and 3,921.70

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Solution

The fourth proportional to 14,309.14, 21,460.43 and 3,921.70 is: 5,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.14 : 21,460.43 = 3,921.70 : x
  2. Step 2: Convert to fraction form
    14,309.14/21,460.43 = 3,921.70/x
  3. Step 3: Cross multiply
    14,309.14x = 21,460.43 × 3,921.70
  4. Step 4: Simplify right side
    14,309.14x = 84,161,368.33
  5. Step 5: Solve for x
    x = 84,161,368.33/14,309.14
  6. Step 6: Final answer
    x = 5,881.65

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1.5x scale

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.