Home / 8,521.41-12,789.45-3,330.93

Finding the Fourth Proportional to 8,521.41, 12,789.45 and 3,330.93

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Solution

The fourth proportional to 8,521.41, 12,789.45 and 3,330.93 is: 4,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.41 : 12,789.45 = 3,330.93 : x
  2. Step 2: Convert to fraction form
    8,521.41/12,789.45 = 3,330.93/x
  3. Step 3: Cross multiply
    8,521.41x = 12,789.45 × 3,330.93
  4. Step 4: Simplify right side
    8,521.41x = 42,600,762.69
  5. Step 5: Solve for x
    x = 42,600,762.69/8,521.41
  6. Step 6: Final answer
    x = 4,999.26

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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.