Home / 12,153.87-18,212.58-9,376.38

Finding the Fourth Proportional to 12,153.87, 18,212.58 and 9,376.38

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Solution

The fourth proportional to 12,153.87, 18,212.58 and 9,376.38 is: 14,050.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.87 : 18,212.58 = 9,376.38 : x
  2. Step 2: Convert to fraction form
    12,153.87/18,212.58 = 9,376.38/x
  3. Step 3: Cross multiply
    12,153.87x = 18,212.58 × 9,376.38
  4. Step 4: Simplify right side
    12,153.87x = 170,768,070.86
  5. Step 5: Solve for x
    x = 170,768,070.86/12,153.87
  6. Step 6: Final answer
    x = 14,050.51

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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.