Home / 12,804.45-19,206.72-4,905.12

Finding the Fourth Proportional to 12,804.45, 19,206.72 and 4,905.12

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Solution

The fourth proportional to 12,804.45, 19,206.72 and 4,905.12 is: 7,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.45 : 19,206.72 = 4,905.12 : x
  2. Step 2: Convert to fraction form
    12,804.45/19,206.72 = 4,905.12/x
  3. Step 3: Cross multiply
    12,804.45x = 19,206.72 × 4,905.12
  4. Step 4: Simplify right side
    12,804.45x = 94,211,266.41
  5. Step 5: Solve for x
    x = 94,211,266.41/12,804.45
  6. Step 6: Final answer
    x = 7,357.70

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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.