Home / 13,634.68-18,816.05-7,666.01

Finding the Fourth Proportional to 13,634.68, 18,816.05 and 7,666.01

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Solution

The fourth proportional to 13,634.68, 18,816.05 and 7,666.01 is: 10,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.68 : 18,816.05 = 7,666.01 : x
  2. Step 2: Convert to fraction form
    13,634.68/18,816.05 = 7,666.01/x
  3. Step 3: Cross multiply
    13,634.68x = 18,816.05 × 7,666.01
  4. Step 4: Simplify right side
    13,634.68x = 144,244,027.46
  5. Step 5: Solve for x
    x = 144,244,027.46/13,634.68
  6. Step 6: Final answer
    x = 10,579.20

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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.