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Finding the Fourth Proportional to 8,567.60, 12,849.60 and 3,637.40

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Solution

The fourth proportional to 8,567.60, 12,849.60 and 3,637.40 is: 5,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.60 : 12,849.60 = 3,637.40 : x
  2. Step 2: Convert to fraction form
    8,567.60/12,849.60 = 3,637.40/x
  3. Step 3: Cross multiply
    8,567.60x = 12,849.60 × 3,637.40
  4. Step 4: Simplify right side
    8,567.60x = 46,739,135.04
  5. Step 5: Solve for x
    x = 46,739,135.04/8,567.60
  6. Step 6: Final answer
    x = 5,455.34

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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.