Home / 13,453.34-18,566.21-11,211.47

Finding the Fourth Proportional to 13,453.34, 18,566.21 and 11,211.47

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Solution

The fourth proportional to 13,453.34, 18,566.21 and 11,211.47 is: 15,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.34 : 18,566.21 = 11,211.47 : x
  2. Step 2: Convert to fraction form
    13,453.34/18,566.21 = 11,211.47/x
  3. Step 3: Cross multiply
    13,453.34x = 18,566.21 × 11,211.47
  4. Step 4: Simplify right side
    13,453.34x = 208,154,357.54
  5. Step 5: Solve for x
    x = 208,154,357.54/13,453.34
  6. Step 6: Final answer
    x = 15,472.32

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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.