Home / 18,955.15-28,436.37-5,807.64

Finding the Fourth Proportional to 18,955.15, 28,436.37 and 5,807.64

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Solution

The fourth proportional to 18,955.15, 28,436.37 and 5,807.64 is: 8,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.15 : 28,436.37 = 5,807.64 : x
  2. Step 2: Convert to fraction form
    18,955.15/28,436.37 = 5,807.64/x
  3. Step 3: Cross multiply
    18,955.15x = 28,436.37 × 5,807.64
  4. Step 4: Simplify right side
    18,955.15x = 165,148,199.87
  5. Step 5: Solve for x
    x = 165,148,199.87/18,955.15
  6. Step 6: Final answer
    x = 8,712.58

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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.