Home / 13,453.70-18,566.21-7,485.62

Finding the Fourth Proportional to 13,453.70, 18,566.21 and 7,485.62

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Solution

The fourth proportional to 13,453.70, 18,566.21 and 7,485.62 is: 10,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.70 : 18,566.21 = 7,485.62 : x
  2. Step 2: Convert to fraction form
    13,453.70/18,566.21 = 7,485.62/x
  3. Step 3: Cross multiply
    13,453.70x = 18,566.21 × 7,485.62
  4. Step 4: Simplify right side
    13,453.70x = 138,979,518.78
  5. Step 5: Solve for x
    x = 138,979,518.78/13,453.70
  6. Step 6: Final answer
    x = 10,330.21

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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.