Home / 13,626.65-20,440.04-4,139.05

Finding the Fourth Proportional to 13,626.65, 20,440.04 and 4,139.05

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Solution

The fourth proportional to 13,626.65, 20,440.04 and 4,139.05 is: 6,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.65 : 20,440.04 = 4,139.05 : x
  2. Step 2: Convert to fraction form
    13,626.65/20,440.04 = 4,139.05/x
  3. Step 3: Cross multiply
    13,626.65x = 20,440.04 × 4,139.05
  4. Step 4: Simplify right side
    13,626.65x = 84,602,347.56
  5. Step 5: Solve for x
    x = 84,602,347.56/13,626.65
  6. Step 6: Final answer
    x = 6,208.59

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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.