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Finding the Fourth Proportional to 7,801.72, 10,763.30 and 4,968.36

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Solution

The fourth proportional to 7,801.72, 10,763.30 and 4,968.36 is: 6,854.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.72 : 10,763.30 = 4,968.36 : x
  2. Step 2: Convert to fraction form
    7,801.72/10,763.30 = 4,968.36/x
  3. Step 3: Cross multiply
    7,801.72x = 10,763.30 × 4,968.36
  4. Step 4: Simplify right side
    7,801.72x = 53,475,949.19
  5. Step 5: Solve for x
    x = 53,475,949.19/7,801.72
  6. Step 6: Final answer
    x = 6,854.38

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Half scale
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Double scale
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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.