Home / 12,483.36-18,722.88-4,690.80

Finding the Fourth Proportional to 12,483.36, 18,722.88 and 4,690.80

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Solution

The fourth proportional to 12,483.36, 18,722.88 and 4,690.80 is: 7,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.36 : 18,722.88 = 4,690.80 : x
  2. Step 2: Convert to fraction form
    12,483.36/18,722.88 = 4,690.80/x
  3. Step 3: Cross multiply
    12,483.36x = 18,722.88 × 4,690.80
  4. Step 4: Simplify right side
    12,483.36x = 87,825,285.50
  5. Step 5: Solve for x
    x = 87,825,285.50/12,483.36
  6. Step 6: Final answer
    x = 7,035.39

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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.