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Finding the Fourth Proportional to 7,799.80, 11,670.95 and 4,681.71

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Solution

The fourth proportional to 7,799.80, 11,670.95 and 4,681.71 is: 7,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.80 : 11,670.95 = 4,681.71 : x
  2. Step 2: Convert to fraction form
    7,799.80/11,670.95 = 4,681.71/x
  3. Step 3: Cross multiply
    7,799.80x = 11,670.95 × 4,681.71
  4. Step 4: Simplify right side
    7,799.80x = 54,640,003.32
  5. Step 5: Solve for x
    x = 54,640,003.32/7,799.80
  6. Step 6: Final answer
    x = 7,005.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.