Home / 19,123.44-26,381.85-12,743.82

Finding the Fourth Proportional to 19,123.44, 26,381.85 and 12,743.82

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Solution

The fourth proportional to 19,123.44, 26,381.85 and 12,743.82 is: 17,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.44 : 26,381.85 = 12,743.82 : x
  2. Step 2: Convert to fraction form
    19,123.44/26,381.85 = 12,743.82/x
  3. Step 3: Cross multiply
    19,123.44x = 26,381.85 × 12,743.82
  4. Step 4: Simplify right side
    19,123.44x = 336,205,483.74
  5. Step 5: Solve for x
    x = 336,205,483.74/19,123.44
  6. Step 6: Final answer
    x = 17,580.81

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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.