Home / 13,440.83-18,539.16-12,325.46

Finding the Fourth Proportional to 13,440.83, 18,539.16 and 12,325.46

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Solution

The fourth proportional to 13,440.83, 18,539.16 and 12,325.46 is: 17,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.83 : 18,539.16 = 12,325.46 : x
  2. Step 2: Convert to fraction form
    13,440.83/18,539.16 = 12,325.46/x
  3. Step 3: Cross multiply
    13,440.83x = 18,539.16 × 12,325.46
  4. Step 4: Simplify right side
    13,440.83x = 228,503,675.01
  5. Step 5: Solve for x
    x = 228,503,675.01/13,440.83
  6. Step 6: Final answer
    x = 17,000.71

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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.