Home / 13,425.44-18,525.84-12,434.72

Finding the Fourth Proportional to 13,425.44, 18,525.84 and 12,434.72

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Solution

The fourth proportional to 13,425.44, 18,525.84 and 12,434.72 is: 17,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.44 : 18,525.84 = 12,434.72 : x
  2. Step 2: Convert to fraction form
    13,425.44/18,525.84 = 12,434.72/x
  3. Step 3: Cross multiply
    13,425.44x = 18,525.84 × 12,434.72
  4. Step 4: Simplify right side
    13,425.44x = 230,363,633.16
  5. Step 5: Solve for x
    x = 230,363,633.16/13,425.44
  6. Step 6: Final answer
    x = 17,158.74

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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.