Home / 13,394.24-18,490.40-8,925.44

Finding the Fourth Proportional to 13,394.24, 18,490.40 and 8,925.44

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Solution

The fourth proportional to 13,394.24, 18,490.40 and 8,925.44 is: 12,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.24 : 18,490.40 = 8,925.44 : x
  2. Step 2: Convert to fraction form
    13,394.24/18,490.40 = 8,925.44/x
  3. Step 3: Cross multiply
    13,394.24x = 18,490.40 × 8,925.44
  4. Step 4: Simplify right side
    13,394.24x = 165,034,955.78
  5. Step 5: Solve for x
    x = 165,034,955.78/13,394.24
  6. Step 6: Final answer
    x = 12,321.34

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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.