Home / 18,855.12-26,008.47-13,557.03

Finding the Fourth Proportional to 18,855.12, 26,008.47 and 13,557.03

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Solution

The fourth proportional to 18,855.12, 26,008.47 and 13,557.03 is: 18,700.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.12 : 26,008.47 = 13,557.03 : x
  2. Step 2: Convert to fraction form
    18,855.12/26,008.47 = 13,557.03/x
  3. Step 3: Cross multiply
    18,855.12x = 26,008.47 × 13,557.03
  4. Step 4: Simplify right side
    18,855.12x = 352,597,608.04
  5. Step 5: Solve for x
    x = 352,597,608.04/18,855.12
  6. Step 6: Final answer
    x = 18,700.36

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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.