Home / 8,975.19-12,385.49-4,996.22

Finding the Fourth Proportional to 8,975.19, 12,385.49 and 4,996.22

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Solution

The fourth proportional to 8,975.19, 12,385.49 and 4,996.22 is: 6,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.19 : 12,385.49 = 4,996.22 : x
  2. Step 2: Convert to fraction form
    8,975.19/12,385.49 = 4,996.22/x
  3. Step 3: Cross multiply
    8,975.19x = 12,385.49 × 4,996.22
  4. Step 4: Simplify right side
    8,975.19x = 61,880,545.94
  5. Step 5: Solve for x
    x = 61,880,545.94/8,975.19
  6. Step 6: Final answer
    x = 6,894.62

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Double scale
Find fourth proportional to 8,976.19, 12,386.86 and 4,997.22
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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.