Home / 13,595.36-18,780.53-12,885.98

Finding the Fourth Proportional to 13,595.36, 18,780.53 and 12,885.98

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Solution

The fourth proportional to 13,595.36, 18,780.53 and 12,885.98 is: 17,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.36 : 18,780.53 = 12,885.98 : x
  2. Step 2: Convert to fraction form
    13,595.36/18,780.53 = 12,885.98/x
  3. Step 3: Cross multiply
    13,595.36x = 18,780.53 × 12,885.98
  4. Step 4: Simplify right side
    13,595.36x = 242,005,375.64
  5. Step 5: Solve for x
    x = 242,005,375.64/13,595.36
  6. Step 6: Final answer
    x = 17,800.59

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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.