Home / 13,992.44-20,886.29-12,331.74

Finding the Fourth Proportional to 13,992.44, 20,886.29 and 12,331.74

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Solution

The fourth proportional to 13,992.44, 20,886.29 and 12,331.74 is: 18,407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.44 : 20,886.29 = 12,331.74 : x
  2. Step 2: Convert to fraction form
    13,992.44/20,886.29 = 12,331.74/x
  3. Step 3: Cross multiply
    13,992.44x = 20,886.29 × 12,331.74
  4. Step 4: Simplify right side
    13,992.44x = 257,564,328.67
  5. Step 5: Solve for x
    x = 257,564,328.67/13,992.44
  6. Step 6: Final answer
    x = 18,407.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.