Home / 9,021.60-12,453.64-5,485.94

Finding the Fourth Proportional to 9,021.60, 12,453.64 and 5,485.94

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Solution

The fourth proportional to 9,021.60, 12,453.64 and 5,485.94 is: 7,572.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.60 : 12,453.64 = 5,485.94 : x
  2. Step 2: Convert to fraction form
    9,021.60/12,453.64 = 5,485.94/x
  3. Step 3: Cross multiply
    9,021.60x = 12,453.64 × 5,485.94
  4. Step 4: Simplify right side
    9,021.60x = 68,319,921.82
  5. Step 5: Solve for x
    x = 68,319,921.82/9,021.60
  6. Step 6: Final answer
    x = 7,572.93

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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.