Home / 12,898.75-19,356.77-4,690.75

Finding the Fourth Proportional to 12,898.75, 19,356.77 and 4,690.75

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Solution

The fourth proportional to 12,898.75, 19,356.77 and 4,690.75 is: 7,039.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.75 : 19,356.77 = 4,690.75 : x
  2. Step 2: Convert to fraction form
    12,898.75/19,356.77 = 4,690.75/x
  3. Step 3: Cross multiply
    12,898.75x = 19,356.77 × 4,690.75
  4. Step 4: Simplify right side
    12,898.75x = 90,797,768.88
  5. Step 5: Solve for x
    x = 90,797,768.88/12,898.75
  6. Step 6: Final answer
    x = 7,039.27

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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.