Home / 13,056.75-19,621.26-12,740.24

Finding the Fourth Proportional to 13,056.75, 19,621.26 and 12,740.24

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Solution

The fourth proportional to 13,056.75, 19,621.26 and 12,740.24 is: 19,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.75 : 19,621.26 = 12,740.24 : x
  2. Step 2: Convert to fraction form
    13,056.75/19,621.26 = 12,740.24/x
  3. Step 3: Cross multiply
    13,056.75x = 19,621.26 × 12,740.24
  4. Step 4: Simplify right side
    13,056.75x = 249,979,561.50
  5. Step 5: Solve for x
    x = 249,979,561.50/13,056.75
  6. Step 6: Final answer
    x = 19,145.62

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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.