Home / 17,620.49-26,439.35-7,758.54

Finding the Fourth Proportional to 17,620.49, 26,439.35 and 7,758.54

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Solution

The fourth proportional to 17,620.49, 26,439.35 and 7,758.54 is: 11,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.49 : 26,439.35 = 7,758.54 : x
  2. Step 2: Convert to fraction form
    17,620.49/26,439.35 = 7,758.54/x
  3. Step 3: Cross multiply
    17,620.49x = 26,439.35 × 7,758.54
  4. Step 4: Simplify right side
    17,620.49x = 205,130,715.76
  5. Step 5: Solve for x
    x = 205,130,715.76/17,620.49
  6. Step 6: Final answer
    x = 11,641.60

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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.