Home / 13,953.06-19,255.52-8,578.58

Finding the Fourth Proportional to 13,953.06, 19,255.52 and 8,578.58

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Solution

The fourth proportional to 13,953.06, 19,255.52 and 8,578.58 is: 11,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.06 : 19,255.52 = 8,578.58 : x
  2. Step 2: Convert to fraction form
    13,953.06/19,255.52 = 8,578.58/x
  3. Step 3: Cross multiply
    13,953.06x = 19,255.52 × 8,578.58
  4. Step 4: Simplify right side
    13,953.06x = 165,184,943.93
  5. Step 5: Solve for x
    x = 165,184,943.93/13,953.06
  6. Step 6: Final answer
    x = 11,838.62

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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.