Home / 14,399.89-21,598.05-3,870.70

Finding the Fourth Proportional to 14,399.89, 21,598.05 and 3,870.70

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Solution

The fourth proportional to 14,399.89, 21,598.05 and 3,870.70 is: 5,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.89 : 21,598.05 = 3,870.70 : x
  2. Step 2: Convert to fraction form
    14,399.89/21,598.05 = 3,870.70/x
  3. Step 3: Cross multiply
    14,399.89x = 21,598.05 × 3,870.70
  4. Step 4: Simplify right side
    14,399.89x = 83,599,572.14
  5. Step 5: Solve for x
    x = 83,599,572.14/14,399.89
  6. Step 6: Final answer
    x = 5,805.57

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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.