Home / 19,427.90-26,809.73-11,472.69

Finding the Fourth Proportional to 19,427.90, 26,809.73 and 11,472.69

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Solution

The fourth proportional to 19,427.90, 26,809.73 and 11,472.69 is: 15,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.90 : 26,809.73 = 11,472.69 : x
  2. Step 2: Convert to fraction form
    19,427.90/26,809.73 = 11,472.69/x
  3. Step 3: Cross multiply
    19,427.90x = 26,809.73 × 11,472.69
  4. Step 4: Simplify right side
    19,427.90x = 307,579,663.91
  5. Step 5: Solve for x
    x = 307,579,663.91/19,427.90
  6. Step 6: Final answer
    x = 15,831.86

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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.