Home / 14,172.90-19,562.95-9,137.12

Finding the Fourth Proportional to 14,172.90, 19,562.95 and 9,137.12

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Solution

The fourth proportional to 14,172.90, 19,562.95 and 9,137.12 is: 12,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.90 : 19,562.95 = 9,137.12 : x
  2. Step 2: Convert to fraction form
    14,172.90/19,562.95 = 9,137.12/x
  3. Step 3: Cross multiply
    14,172.90x = 19,562.95 × 9,137.12
  4. Step 4: Simplify right side
    14,172.90x = 178,749,021.70
  5. Step 5: Solve for x
    x = 178,749,021.70/14,172.90
  6. Step 6: Final answer
    x = 12,612.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.