Home / 14,339.69-19,780.19-9,025.28

Finding the Fourth Proportional to 14,339.69, 19,780.19 and 9,025.28

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Solution

The fourth proportional to 14,339.69, 19,780.19 and 9,025.28 is: 12,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.69 : 19,780.19 = 9,025.28 : x
  2. Step 2: Convert to fraction form
    14,339.69/19,780.19 = 9,025.28/x
  3. Step 3: Cross multiply
    14,339.69x = 19,780.19 × 9,025.28
  4. Step 4: Simplify right side
    14,339.69x = 178,521,753.20
  5. Step 5: Solve for x
    x = 178,521,753.20/14,339.69
  6. Step 6: Final answer
    x = 12,449.48

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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.