Home / 18,285.60-27,431.40-6,436.32

Finding the Fourth Proportional to 18,285.60, 27,431.40 and 6,436.32

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Solution

The fourth proportional to 18,285.60, 27,431.40 and 6,436.32 is: 9,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.60 : 27,431.40 = 6,436.32 : x
  2. Step 2: Convert to fraction form
    18,285.60/27,431.40 = 6,436.32/x
  3. Step 3: Cross multiply
    18,285.60x = 27,431.40 × 6,436.32
  4. Step 4: Simplify right side
    18,285.60x = 176,557,268.45
  5. Step 5: Solve for x
    x = 176,557,268.45/18,285.60
  6. Step 6: Final answer
    x = 9,655.54

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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.