Home / 18,887.69-28,332.55-4,847.84

Finding the Fourth Proportional to 18,887.69, 28,332.55 and 4,847.84

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Solution

The fourth proportional to 18,887.69, 28,332.55 and 4,847.84 is: 7,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.69 : 28,332.55 = 4,847.84 : x
  2. Step 2: Convert to fraction form
    18,887.69/28,332.55 = 4,847.84/x
  3. Step 3: Cross multiply
    18,887.69x = 28,332.55 × 4,847.84
  4. Step 4: Simplify right side
    18,887.69x = 137,351,746.08
  5. Step 5: Solve for x
    x = 137,351,746.08/18,887.69
  6. Step 6: Final answer
    x = 7,272.02

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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.