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Finding the Fourth Proportional to 8,646.51, 12,968.55 and 4,936.71

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Solution

The fourth proportional to 8,646.51, 12,968.55 and 4,936.71 is: 7,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.51 : 12,968.55 = 4,936.71 : x
  2. Step 2: Convert to fraction form
    8,646.51/12,968.55 = 4,936.71/x
  3. Step 3: Cross multiply
    8,646.51x = 12,968.55 × 4,936.71
  4. Step 4: Simplify right side
    8,646.51x = 64,021,970.47
  5. Step 5: Solve for x
    x = 64,021,970.47/8,646.51
  6. Step 6: Final answer
    x = 7,404.37

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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.