Home / 13,568.38-20,373.23-12,900.13

Finding the Fourth Proportional to 13,568.38, 20,373.23 and 12,900.13

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Solution

The fourth proportional to 13,568.38, 20,373.23 and 12,900.13 is: 19,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.38 : 20,373.23 = 12,900.13 : x
  2. Step 2: Convert to fraction form
    13,568.38/20,373.23 = 12,900.13/x
  3. Step 3: Cross multiply
    13,568.38x = 20,373.23 × 12,900.13
  4. Step 4: Simplify right side
    13,568.38x = 262,817,315.52
  5. Step 5: Solve for x
    x = 262,817,315.52/13,568.38
  6. Step 6: Final answer
    x = 19,369.84

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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.