Home / 15,726.94-21,703.33-8,653.51

Finding the Fourth Proportional to 15,726.94, 21,703.33 and 8,653.51

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Solution

The fourth proportional to 15,726.94, 21,703.33 and 8,653.51 is: 11,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.94 : 21,703.33 = 8,653.51 : x
  2. Step 2: Convert to fraction form
    15,726.94/21,703.33 = 8,653.51/x
  3. Step 3: Cross multiply
    15,726.94x = 21,703.33 × 8,653.51
  4. Step 4: Simplify right side
    15,726.94x = 187,809,972.46
  5. Step 5: Solve for x
    x = 187,809,972.46/15,726.94
  6. Step 6: Final answer
    x = 11,941.93

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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.