Home / 19,431.16-26,826.06-12,826.36

Finding the Fourth Proportional to 19,431.16, 26,826.06 and 12,826.36

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Solution

The fourth proportional to 19,431.16, 26,826.06 and 12,826.36 is: 17,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.16 : 26,826.06 = 12,826.36 : x
  2. Step 2: Convert to fraction form
    19,431.16/26,826.06 = 12,826.36/x
  3. Step 3: Cross multiply
    19,431.16x = 26,826.06 × 12,826.36
  4. Step 4: Simplify right side
    19,431.16x = 344,080,702.94
  5. Step 5: Solve for x
    x = 344,080,702.94/19,431.16
  6. Step 6: Final answer
    x = 17,707.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.