Home / 13,310.88-18,370.72-11,068.90

Finding the Fourth Proportional to 13,310.88, 18,370.72 and 11,068.90

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Solution

The fourth proportional to 13,310.88, 18,370.72 and 11,068.90 is: 15,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.88 : 18,370.72 = 11,068.90 : x
  2. Step 2: Convert to fraction form
    13,310.88/18,370.72 = 11,068.90/x
  3. Step 3: Cross multiply
    13,310.88x = 18,370.72 × 11,068.90
  4. Step 4: Simplify right side
    13,310.88x = 203,343,662.61
  5. Step 5: Solve for x
    x = 203,343,662.61/13,310.88
  6. Step 6: Final answer
    x = 15,276.50

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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.