Home / 14,113.80-21,146.40-9,180.90

Finding the Fourth Proportional to 14,113.80, 21,146.40 and 9,180.90

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Solution

The fourth proportional to 14,113.80, 21,146.40 and 9,180.90 is: 13,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.80 : 21,146.40 = 9,180.90 : x
  2. Step 2: Convert to fraction form
    14,113.80/21,146.40 = 9,180.90/x
  3. Step 3: Cross multiply
    14,113.80x = 21,146.40 × 9,180.90
  4. Step 4: Simplify right side
    14,113.80x = 194,142,983.76
  5. Step 5: Solve for x
    x = 194,142,983.76/14,113.80
  6. Step 6: Final answer
    x = 13,755.54

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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.