Home / 17,918.92-26,878.88-4,771.30

Finding the Fourth Proportional to 17,918.92, 26,878.88 and 4,771.30

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Solution

The fourth proportional to 17,918.92, 26,878.88 and 4,771.30 is: 7,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.92 : 26,878.88 = 4,771.30 : x
  2. Step 2: Convert to fraction form
    17,918.92/26,878.88 = 4,771.30/x
  3. Step 3: Cross multiply
    17,918.92x = 26,878.88 × 4,771.30
  4. Step 4: Simplify right side
    17,918.92x = 128,247,200.14
  5. Step 5: Solve for x
    x = 128,247,200.14/17,918.92
  6. Step 6: Final answer
    x = 7,157.08

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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.