Home / 14,053.29-19,391.20-8,390.33

Finding the Fourth Proportional to 14,053.29, 19,391.20 and 8,390.33

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Solution

The fourth proportional to 14,053.29, 19,391.20 and 8,390.33 is: 11,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.29 : 19,391.20 = 8,390.33 : x
  2. Step 2: Convert to fraction form
    14,053.29/19,391.20 = 8,390.33/x
  3. Step 3: Cross multiply
    14,053.29x = 19,391.20 × 8,390.33
  4. Step 4: Simplify right side
    14,053.29x = 162,698,567.10
  5. Step 5: Solve for x
    x = 162,698,567.10/14,053.29
  6. Step 6: Final answer
    x = 11,577.26

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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.