Home / 18,803.46-28,196.88-5,653.30

Finding the Fourth Proportional to 18,803.46, 28,196.88 and 5,653.30

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Solution

The fourth proportional to 18,803.46, 28,196.88 and 5,653.30 is: 8,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.46 : 28,196.88 = 5,653.30 : x
  2. Step 2: Convert to fraction form
    18,803.46/28,196.88 = 5,653.30/x
  3. Step 3: Cross multiply
    18,803.46x = 28,196.88 × 5,653.30
  4. Step 4: Simplify right side
    18,803.46x = 159,405,421.70
  5. Step 5: Solve for x
    x = 159,405,421.70/18,803.46
  6. Step 6: Final answer
    x = 8,477.45

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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.