Home / 13,155.79-19,736.28-4,269.47

Finding the Fourth Proportional to 13,155.79, 19,736.28 and 4,269.47

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Solution

The fourth proportional to 13,155.79, 19,736.28 and 4,269.47 is: 6,405.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.79 : 19,736.28 = 4,269.47 : x
  2. Step 2: Convert to fraction form
    13,155.79/19,736.28 = 4,269.47/x
  3. Step 3: Cross multiply
    13,155.79x = 19,736.28 × 4,269.47
  4. Step 4: Simplify right side
    13,155.79x = 84,263,368.70
  5. Step 5: Solve for x
    x = 84,263,368.70/13,155.79
  6. Step 6: Final answer
    x = 6,405.04

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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.