Home / 26,120.07-39,170.08-12,784.84

Finding the Fourth Proportional to 26,120.07, 39,170.08 and 12,784.84

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Solution

The fourth proportional to 26,120.07, 39,170.08 and 12,784.84 is: 19,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.07 : 39,170.08 = 12,784.84 : x
  2. Step 2: Convert to fraction form
    26,120.07/39,170.08 = 12,784.84/x
  3. Step 3: Cross multiply
    26,120.07x = 39,170.08 × 12,784.84
  4. Step 4: Simplify right side
    26,120.07x = 500,783,123.64
  5. Step 5: Solve for x
    x = 500,783,123.64/26,120.07
  6. Step 6: Final answer
    x = 19,172.35

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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.