Home / 15,367.08-21,178.50-11,168.04

Finding the Fourth Proportional to 15,367.08, 21,178.50 and 11,168.04

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Solution

The fourth proportional to 15,367.08, 21,178.50 and 11,168.04 is: 15,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.08 : 21,178.50 = 11,168.04 : x
  2. Step 2: Convert to fraction form
    15,367.08/21,178.50 = 11,168.04/x
  3. Step 3: Cross multiply
    15,367.08x = 21,178.50 × 11,168.04
  4. Step 4: Simplify right side
    15,367.08x = 236,522,335.14
  5. Step 5: Solve for x
    x = 236,522,335.14/15,367.08
  6. Step 6: Final answer
    x = 15,391.50

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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.