Home / 14,368.56-21,553.20-3,980.28

Finding the Fourth Proportional to 14,368.56, 21,553.20 and 3,980.28

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Solution

The fourth proportional to 14,368.56, 21,553.20 and 3,980.28 is: 5,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.56 : 21,553.20 = 3,980.28 : x
  2. Step 2: Convert to fraction form
    14,368.56/21,553.20 = 3,980.28/x
  3. Step 3: Cross multiply
    14,368.56x = 21,553.20 × 3,980.28
  4. Step 4: Simplify right side
    14,368.56x = 85,787,770.90
  5. Step 5: Solve for x
    x = 85,787,770.90/14,368.56
  6. Step 6: Final answer
    x = 5,970.52

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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.