Home / 19,342.63-26,690.45-11,786.21

Finding the Fourth Proportional to 19,342.63, 26,690.45 and 11,786.21

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Solution

The fourth proportional to 19,342.63, 26,690.45 and 11,786.21 is: 16,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,342.63 : 26,690.45 = 11,786.21 : x
  2. Step 2: Convert to fraction form
    19,342.63/26,690.45 = 11,786.21/x
  3. Step 3: Cross multiply
    19,342.63x = 26,690.45 × 11,786.21
  4. Step 4: Simplify right side
    19,342.63x = 314,579,156.40
  5. Step 5: Solve for x
    x = 314,579,156.40/19,342.63
  6. Step 6: Final answer
    x = 16,263.51

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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.