Home / 13,634.20-18,816.06-7,666.26

Finding the Fourth Proportional to 13,634.20, 18,816.06 and 7,666.26

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Solution

The fourth proportional to 13,634.20, 18,816.06 and 7,666.26 is: 10,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.20 : 18,816.06 = 7,666.26 : x
  2. Step 2: Convert to fraction form
    13,634.20/18,816.06 = 7,666.26/x
  3. Step 3: Cross multiply
    13,634.20x = 18,816.06 × 7,666.26
  4. Step 4: Simplify right side
    13,634.20x = 144,248,808.14
  5. Step 5: Solve for x
    x = 144,248,808.14/13,634.20
  6. Step 6: Final answer
    x = 10,579.92

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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.