Home / 13,929.82-19,220.41-8,263.51

Finding the Fourth Proportional to 13,929.82, 19,220.41 and 8,263.51

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Solution

The fourth proportional to 13,929.82, 19,220.41 and 8,263.51 is: 11,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.82 : 19,220.41 = 8,263.51 : x
  2. Step 2: Convert to fraction form
    13,929.82/19,220.41 = 8,263.51/x
  3. Step 3: Cross multiply
    13,929.82x = 19,220.41 × 8,263.51
  4. Step 4: Simplify right side
    13,929.82x = 158,828,050.24
  5. Step 5: Solve for x
    x = 158,828,050.24/13,929.82
  6. Step 6: Final answer
    x = 11,402.02

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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.