Home / 13,479.94-20,189.14-11,903.24

Finding the Fourth Proportional to 13,479.94, 20,189.14 and 11,903.24

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Solution

The fourth proportional to 13,479.94, 20,189.14 and 11,903.24 is: 17,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.94 : 20,189.14 = 11,903.24 : x
  2. Step 2: Convert to fraction form
    13,479.94/20,189.14 = 11,903.24/x
  3. Step 3: Cross multiply
    13,479.94x = 20,189.14 × 11,903.24
  4. Step 4: Simplify right side
    13,479.94x = 240,316,178.81
  5. Step 5: Solve for x
    x = 240,316,178.81/13,479.94
  6. Step 6: Final answer
    x = 17,827.69

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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.