Home / 13,784.07-20,685.32-4,899.05

Finding the Fourth Proportional to 13,784.07, 20,685.32 and 4,899.05

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Solution

The fourth proportional to 13,784.07, 20,685.32 and 4,899.05 is: 7,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.07 : 20,685.32 = 4,899.05 : x
  2. Step 2: Convert to fraction form
    13,784.07/20,685.32 = 4,899.05/x
  3. Step 3: Cross multiply
    13,784.07x = 20,685.32 × 4,899.05
  4. Step 4: Simplify right side
    13,784.07x = 101,338,412.52
  5. Step 5: Solve for x
    x = 101,338,412.52/13,784.07
  6. Step 6: Final answer
    x = 7,351.85

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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.