Home / 13,045.62-19,571.26-4,280.20

Finding the Fourth Proportional to 13,045.62, 19,571.26 and 4,280.20

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Solution

The fourth proportional to 13,045.62, 19,571.26 and 4,280.20 is: 6,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.62 : 19,571.26 = 4,280.20 : x
  2. Step 2: Convert to fraction form
    13,045.62/19,571.26 = 4,280.20/x
  3. Step 3: Cross multiply
    13,045.62x = 19,571.26 × 4,280.20
  4. Step 4: Simplify right side
    13,045.62x = 83,768,907.05
  5. Step 5: Solve for x
    x = 83,768,907.05/13,045.62
  6. Step 6: Final answer
    x = 6,421.23

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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.