Home / 15,074.14-20,798.55-8,784.22

Finding the Fourth Proportional to 15,074.14, 20,798.55 and 8,784.22

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Solution

The fourth proportional to 15,074.14, 20,798.55 and 8,784.22 is: 12,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.14 : 20,798.55 = 8,784.22 : x
  2. Step 2: Convert to fraction form
    15,074.14/20,798.55 = 8,784.22/x
  3. Step 3: Cross multiply
    15,074.14x = 20,798.55 × 8,784.22
  4. Step 4: Simplify right side
    15,074.14x = 182,699,038.88
  5. Step 5: Solve for x
    x = 182,699,038.88/15,074.14
  6. Step 6: Final answer
    x = 12,120.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.