Home / 14,772.78-20,386.53-8,058.51

Finding the Fourth Proportional to 14,772.78, 20,386.53 and 8,058.51

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Solution

The fourth proportional to 14,772.78, 20,386.53 and 8,058.51 is: 11,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.78 : 20,386.53 = 8,058.51 : x
  2. Step 2: Convert to fraction form
    14,772.78/20,386.53 = 8,058.51/x
  3. Step 3: Cross multiply
    14,772.78x = 20,386.53 × 8,058.51
  4. Step 4: Simplify right side
    14,772.78x = 164,285,055.87
  5. Step 5: Solve for x
    x = 164,285,055.87/14,772.78
  6. Step 6: Final answer
    x = 11,120.79

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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.