Home / 13,718.08-18,929.97-8,053.06

Finding the Fourth Proportional to 13,718.08, 18,929.97 and 8,053.06

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Solution

The fourth proportional to 13,718.08, 18,929.97 and 8,053.06 is: 11,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.08 : 18,929.97 = 8,053.06 : x
  2. Step 2: Convert to fraction form
    13,718.08/18,929.97 = 8,053.06/x
  3. Step 3: Cross multiply
    13,718.08x = 18,929.97 × 8,053.06
  4. Step 4: Simplify right side
    13,718.08x = 152,444,172.38
  5. Step 5: Solve for x
    x = 152,444,172.38/13,718.08
  6. Step 6: Final answer
    x = 11,112.65

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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.