Home / 14,117.17-19,481.21-7,830.13

Finding the Fourth Proportional to 14,117.17, 19,481.21 and 7,830.13

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Solution

The fourth proportional to 14,117.17, 19,481.21 and 7,830.13 is: 10,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.17 : 19,481.21 = 7,830.13 : x
  2. Step 2: Convert to fraction form
    14,117.17/19,481.21 = 7,830.13/x
  3. Step 3: Cross multiply
    14,117.17x = 19,481.21 × 7,830.13
  4. Step 4: Simplify right side
    14,117.17x = 152,540,367.71
  5. Step 5: Solve for x
    x = 152,540,367.71/14,117.17
  6. Step 6: Final answer
    x = 10,805.31

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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.