Home / 13,406.94-20,119.47-5,510.88

Finding the Fourth Proportional to 13,406.94, 20,119.47 and 5,510.88

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Solution

The fourth proportional to 13,406.94, 20,119.47 and 5,510.88 is: 8,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.94 : 20,119.47 = 5,510.88 : x
  2. Step 2: Convert to fraction form
    13,406.94/20,119.47 = 5,510.88/x
  3. Step 3: Cross multiply
    13,406.94x = 20,119.47 × 5,510.88
  4. Step 4: Simplify right side
    13,406.94x = 110,875,984.83
  5. Step 5: Solve for x
    x = 110,875,984.83/13,406.94
  6. Step 6: Final answer
    x = 8,270.04

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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.