Home / 13,634.68-18,814.80-7,665.24

Finding the Fourth Proportional to 13,634.68, 18,814.80 and 7,665.24

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Solution

The fourth proportional to 13,634.68, 18,814.80 and 7,665.24 is: 10,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.68 : 18,814.80 = 7,665.24 : x
  2. Step 2: Convert to fraction form
    13,634.68/18,814.80 = 7,665.24/x
  3. Step 3: Cross multiply
    13,634.68x = 18,814.80 × 7,665.24
  4. Step 4: Simplify right side
    13,634.68x = 144,219,957.55
  5. Step 5: Solve for x
    x = 144,219,957.55/13,634.68
  6. Step 6: Final answer
    x = 10,577.44

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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.