Home / 8,394.30-12,586.65-3,458.07

Finding the Fourth Proportional to 8,394.30, 12,586.65 and 3,458.07

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Solution

The fourth proportional to 8,394.30, 12,586.65 and 3,458.07 is: 5,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.30 : 12,586.65 = 3,458.07 : x
  2. Step 2: Convert to fraction form
    8,394.30/12,586.65 = 3,458.07/x
  3. Step 3: Cross multiply
    8,394.30x = 12,586.65 × 3,458.07
  4. Step 4: Simplify right side
    8,394.30x = 43,525,516.77
  5. Step 5: Solve for x
    x = 43,525,516.77/8,394.30
  6. Step 6: Final answer
    x = 5,185.13

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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.