Home / 14,391.46-21,555.95-6,980.34

Finding the Fourth Proportional to 14,391.46, 21,555.95 and 6,980.34

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Solution

The fourth proportional to 14,391.46, 21,555.95 and 6,980.34 is: 10,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.46 : 21,555.95 = 6,980.34 : x
  2. Step 2: Convert to fraction form
    14,391.46/21,555.95 = 6,980.34/x
  3. Step 3: Cross multiply
    14,391.46x = 21,555.95 × 6,980.34
  4. Step 4: Simplify right side
    14,391.46x = 150,467,905.96
  5. Step 5: Solve for x
    x = 150,467,905.96/14,391.46
  6. Step 6: Final answer
    x = 10,455.36

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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.