Home / 17,919.06-26,878.10-4,771.55

Finding the Fourth Proportional to 17,919.06, 26,878.10 and 4,771.55

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Solution

The fourth proportional to 17,919.06, 26,878.10 and 4,771.55 is: 7,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.06 : 26,878.10 = 4,771.55 : x
  2. Step 2: Convert to fraction form
    17,919.06/26,878.10 = 4,771.55/x
  3. Step 3: Cross multiply
    17,919.06x = 26,878.10 × 4,771.55
  4. Step 4: Simplify right side
    17,919.06x = 128,250,039.81
  5. Step 5: Solve for x
    x = 128,250,039.81/17,919.06
  6. Step 6: Final answer
    x = 7,157.19

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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.