Home / 8,289.74-12,421.58-5,788.46

Finding the Fourth Proportional to 8,289.74, 12,421.58 and 5,788.46

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Solution

The fourth proportional to 8,289.74, 12,421.58 and 5,788.46 is: 8,673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.74 : 12,421.58 = 5,788.46 : x
  2. Step 2: Convert to fraction form
    8,289.74/12,421.58 = 5,788.46/x
  3. Step 3: Cross multiply
    8,289.74x = 12,421.58 × 5,788.46
  4. Step 4: Simplify right side
    8,289.74x = 71,901,727.92
  5. Step 5: Solve for x
    x = 71,901,727.92/8,289.74
  6. Step 6: Final answer
    x = 8,673.59

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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.