Home / 13,370.24-18,464.64-11,290.88

Finding the Fourth Proportional to 13,370.24, 18,464.64 and 11,290.88

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Solution

The fourth proportional to 13,370.24, 18,464.64 and 11,290.88 is: 15,592.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.24 : 18,464.64 = 11,290.88 : x
  2. Step 2: Convert to fraction form
    13,370.24/18,464.64 = 11,290.88/x
  3. Step 3: Cross multiply
    13,370.24x = 18,464.64 × 11,290.88
  4. Step 4: Simplify right side
    13,370.24x = 208,482,034.48
  5. Step 5: Solve for x
    x = 208,482,034.48/13,370.24
  6. Step 6: Final answer
    x = 15,592.99

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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.