Home / 13,355.54-18,427.60-7,975.52

Finding the Fourth Proportional to 13,355.54, 18,427.60 and 7,975.52

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Solution

The fourth proportional to 13,355.54, 18,427.60 and 7,975.52 is: 11,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.54 : 18,427.60 = 7,975.52 : x
  2. Step 2: Convert to fraction form
    13,355.54/18,427.60 = 7,975.52/x
  3. Step 3: Cross multiply
    13,355.54x = 18,427.60 × 7,975.52
  4. Step 4: Simplify right side
    13,355.54x = 146,969,692.35
  5. Step 5: Solve for x
    x = 146,969,692.35/13,355.54
  6. Step 6: Final answer
    x = 11,004.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.