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Finding the Fourth Proportional to 7,259.69, 10,021.88 and 4,868.78

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Solution

The fourth proportional to 7,259.69, 10,021.88 and 4,868.78 is: 6,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.69 : 10,021.88 = 4,868.78 : x
  2. Step 2: Convert to fraction form
    7,259.69/10,021.88 = 4,868.78/x
  3. Step 3: Cross multiply
    7,259.69x = 10,021.88 × 4,868.78
  4. Step 4: Simplify right side
    7,259.69x = 48,794,254.45
  5. Step 5: Solve for x
    x = 48,794,254.45/7,259.69
  6. Step 6: Final answer
    x = 6,721.26

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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.