Home / 8,688.35-13,032.42-2,114.55

Finding the Fourth Proportional to 8,688.35, 13,032.42 and 2,114.55

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Solution

The fourth proportional to 8,688.35, 13,032.42 and 2,114.55 is: 3,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.35 : 13,032.42 = 2,114.55 : x
  2. Step 2: Convert to fraction form
    8,688.35/13,032.42 = 2,114.55/x
  3. Step 3: Cross multiply
    8,688.35x = 13,032.42 × 2,114.55
  4. Step 4: Simplify right side
    8,688.35x = 27,557,703.71
  5. Step 5: Solve for x
    x = 27,557,703.71/8,688.35
  6. Step 6: Final answer
    x = 3,171.80

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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.