Home / 13,954.06-19,265.21-8,920.32

Finding the Fourth Proportional to 13,954.06, 19,265.21 and 8,920.32

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Solution

The fourth proportional to 13,954.06, 19,265.21 and 8,920.32 is: 12,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.06 : 19,265.21 = 8,920.32 : x
  2. Step 2: Convert to fraction form
    13,954.06/19,265.21 = 8,920.32/x
  3. Step 3: Cross multiply
    13,954.06x = 19,265.21 × 8,920.32
  4. Step 4: Simplify right side
    13,954.06x = 171,851,838.07
  5. Step 5: Solve for x
    x = 171,851,838.07/13,954.06
  6. Step 6: Final answer
    x = 12,315.54

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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.