Home / 13,488.81-20,203.74-11,122.23

Finding the Fourth Proportional to 13,488.81, 20,203.74 and 11,122.23

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Solution

The fourth proportional to 13,488.81, 20,203.74 and 11,122.23 is: 16,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.81 : 20,203.74 = 11,122.23 : x
  2. Step 2: Convert to fraction form
    13,488.81/20,203.74 = 11,122.23/x
  3. Step 3: Cross multiply
    13,488.81x = 20,203.74 × 11,122.23
  4. Step 4: Simplify right side
    13,488.81x = 224,710,643.14
  5. Step 5: Solve for x
    x = 224,710,643.14/13,488.81
  6. Step 6: Final answer
    x = 16,659.04

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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.