Home / 13,784.58-20,658.31-7,535.21

Finding the Fourth Proportional to 13,784.58, 20,658.31 and 7,535.21

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Solution

The fourth proportional to 13,784.58, 20,658.31 and 7,535.21 is: 11,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.58 : 20,658.31 = 7,535.21 : x
  2. Step 2: Convert to fraction form
    13,784.58/20,658.31 = 7,535.21/x
  3. Step 3: Cross multiply
    13,784.58x = 20,658.31 × 7,535.21
  4. Step 4: Simplify right side
    13,784.58x = 155,664,581.97
  5. Step 5: Solve for x
    x = 155,664,581.97/13,784.58
  6. Step 6: Final answer
    x = 11,292.66

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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.