Home / 12,826.88-19,243.16-5,437.64

Finding the Fourth Proportional to 12,826.88, 19,243.16 and 5,437.64

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Solution

The fourth proportional to 12,826.88, 19,243.16 and 5,437.64 is: 8,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.88 : 19,243.16 = 5,437.64 : x
  2. Step 2: Convert to fraction form
    12,826.88/19,243.16 = 5,437.64/x
  3. Step 3: Cross multiply
    12,826.88x = 19,243.16 × 5,437.64
  4. Step 4: Simplify right side
    12,826.88x = 104,637,376.54
  5. Step 5: Solve for x
    x = 104,637,376.54/12,826.88
  6. Step 6: Final answer
    x = 8,157.66

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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.