Home / 13,271.24-18,321.36-10,280.36

Finding the Fourth Proportional to 13,271.24, 18,321.36 and 10,280.36

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Solution

The fourth proportional to 13,271.24, 18,321.36 and 10,280.36 is: 14,192.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.24 : 18,321.36 = 10,280.36 : x
  2. Step 2: Convert to fraction form
    13,271.24/18,321.36 = 10,280.36/x
  3. Step 3: Cross multiply
    13,271.24x = 18,321.36 × 10,280.36
  4. Step 4: Simplify right side
    13,271.24x = 188,350,176.49
  5. Step 5: Solve for x
    x = 188,350,176.49/13,271.24
  6. Step 6: Final answer
    x = 14,192.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.