Home / 18,853.74-28,280.58-4,813.76

Finding the Fourth Proportional to 18,853.74, 28,280.58 and 4,813.76

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Solution

The fourth proportional to 18,853.74, 28,280.58 and 4,813.76 is: 7,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.74 : 28,280.58 = 4,813.76 : x
  2. Step 2: Convert to fraction form
    18,853.74/28,280.58 = 4,813.76/x
  3. Step 3: Cross multiply
    18,853.74x = 28,280.58 × 4,813.76
  4. Step 4: Simplify right side
    18,853.74x = 136,135,924.78
  5. Step 5: Solve for x
    x = 136,135,924.78/18,853.74
  6. Step 6: Final answer
    x = 7,220.63

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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.