Home / 12,912.47-19,362.30-4,591.23

Finding the Fourth Proportional to 12,912.47, 19,362.30 and 4,591.23

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Solution

The fourth proportional to 12,912.47, 19,362.30 and 4,591.23 is: 6,884.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.47 : 19,362.30 = 4,591.23 : x
  2. Step 2: Convert to fraction form
    12,912.47/19,362.30 = 4,591.23/x
  3. Step 3: Cross multiply
    12,912.47x = 19,362.30 × 4,591.23
  4. Step 4: Simplify right side
    12,912.47x = 88,896,772.63
  5. Step 5: Solve for x
    x = 88,896,772.63/12,912.47
  6. Step 6: Final answer
    x = 6,884.57

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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.