Home / 18,963.96-28,445.71-4,922.74

Finding the Fourth Proportional to 18,963.96, 28,445.71 and 4,922.74

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Solution

The fourth proportional to 18,963.96, 28,445.71 and 4,922.74 is: 7,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.96 : 28,445.71 = 4,922.74 : x
  2. Step 2: Convert to fraction form
    18,963.96/28,445.71 = 4,922.74/x
  3. Step 3: Cross multiply
    18,963.96x = 28,445.71 × 4,922.74
  4. Step 4: Simplify right side
    18,963.96x = 140,030,834.45
  5. Step 5: Solve for x
    x = 140,030,834.45/18,963.96
  6. Step 6: Final answer
    x = 7,384.05

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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.