Home / 19,105.31-26,367.76-10,721.81

Finding the Fourth Proportional to 19,105.31, 26,367.76 and 10,721.81

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Solution

The fourth proportional to 19,105.31, 26,367.76 and 10,721.81 is: 14,797.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.31 : 26,367.76 = 10,721.81 : x
  2. Step 2: Convert to fraction form
    19,105.31/26,367.76 = 10,721.81/x
  3. Step 3: Cross multiply
    19,105.31x = 26,367.76 × 10,721.81
  4. Step 4: Simplify right side
    19,105.31x = 282,710,192.17
  5. Step 5: Solve for x
    x = 282,710,192.17/19,105.31
  6. Step 6: Final answer
    x = 14,797.46

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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.