Home / 17,745.60-26,618.40-11,913.60

Finding the Fourth Proportional to 17,745.60, 26,618.40 and 11,913.60

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Solution

The fourth proportional to 17,745.60, 26,618.40 and 11,913.60 is: 17,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.60 : 26,618.40 = 11,913.60 : x
  2. Step 2: Convert to fraction form
    17,745.60/26,618.40 = 11,913.60/x
  3. Step 3: Cross multiply
    17,745.60x = 26,618.40 × 11,913.60
  4. Step 4: Simplify right side
    17,745.60x = 317,120,970.24
  5. Step 5: Solve for x
    x = 317,120,970.24/17,745.60
  6. Step 6: Final answer
    x = 17,870.40

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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.