Home / 13,280.23-19,913.99-7,735.15

Finding the Fourth Proportional to 13,280.23, 19,913.99 and 7,735.15

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Solution

The fourth proportional to 13,280.23, 19,913.99 and 7,735.15 is: 11,599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.23 : 19,913.99 = 7,735.15 : x
  2. Step 2: Convert to fraction form
    13,280.23/19,913.99 = 7,735.15/x
  3. Step 3: Cross multiply
    13,280.23x = 19,913.99 × 7,735.15
  4. Step 4: Simplify right side
    13,280.23x = 154,037,685.97
  5. Step 5: Solve for x
    x = 154,037,685.97/13,280.23
  6. Step 6: Final answer
    x = 11,599.03

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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.