Home / 13,566.88-20,370.98-12,898.63

Finding the Fourth Proportional to 13,566.88, 20,370.98 and 12,898.63

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Solution

The fourth proportional to 13,566.88, 20,370.98 and 12,898.63 is: 19,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.88 : 20,370.98 = 12,898.63 : x
  2. Step 2: Convert to fraction form
    13,566.88/20,370.98 = 12,898.63/x
  3. Step 3: Cross multiply
    13,566.88x = 20,370.98 × 12,898.63
  4. Step 4: Simplify right side
    13,566.88x = 262,757,733.76
  5. Step 5: Solve for x
    x = 262,757,733.76/13,566.88
  6. Step 6: Final answer
    x = 19,367.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.