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Finding the Fourth Proportional to 8,840.78, 13,256.04 and 4,682.78

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Solution

The fourth proportional to 8,840.78, 13,256.04 and 4,682.78 is: 7,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.78 : 13,256.04 = 4,682.78 : x
  2. Step 2: Convert to fraction form
    8,840.78/13,256.04 = 4,682.78/x
  3. Step 3: Cross multiply
    8,840.78x = 13,256.04 × 4,682.78
  4. Step 4: Simplify right side
    8,840.78x = 62,075,118.99
  5. Step 5: Solve for x
    x = 62,075,118.99/8,840.78
  6. Step 6: Final answer
    x = 7,021.45

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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.