Home / 13,152.47-19,721.40-4,382.60

Finding the Fourth Proportional to 13,152.47, 19,721.40 and 4,382.60

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Solution

The fourth proportional to 13,152.47, 19,721.40 and 4,382.60 is: 6,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.47 : 19,721.40 = 4,382.60 : x
  2. Step 2: Convert to fraction form
    13,152.47/19,721.40 = 4,382.60/x
  3. Step 3: Cross multiply
    13,152.47x = 19,721.40 × 4,382.60
  4. Step 4: Simplify right side
    13,152.47x = 86,430,909.03
  5. Step 5: Solve for x
    x = 86,430,909.03/13,152.47
  6. Step 6: Final answer
    x = 6,571.46

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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.