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Finding the Fourth Proportional to 8,976.45, 12,385.04 and 5,341.93

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Solution

The fourth proportional to 8,976.45, 12,385.04 and 5,341.93 is: 7,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.45 : 12,385.04 = 5,341.93 : x
  2. Step 2: Convert to fraction form
    8,976.45/12,385.04 = 5,341.93/x
  3. Step 3: Cross multiply
    8,976.45x = 12,385.04 × 5,341.93
  4. Step 4: Simplify right side
    8,976.45x = 66,159,959.05
  5. Step 5: Solve for x
    x = 66,159,959.05/8,976.45
  6. Step 6: Final answer
    x = 7,370.39

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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.