Home / 18,855.12-26,008.44-13,557.06

Finding the Fourth Proportional to 18,855.12, 26,008.44 and 13,557.06

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Solution

The fourth proportional to 18,855.12, 26,008.44 and 13,557.06 is: 18,700.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.12 : 26,008.44 = 13,557.06 : x
  2. Step 2: Convert to fraction form
    18,855.12/26,008.44 = 13,557.06/x
  3. Step 3: Cross multiply
    18,855.12x = 26,008.44 × 13,557.06
  4. Step 4: Simplify right side
    18,855.12x = 352,597,981.59
  5. Step 5: Solve for x
    x = 352,597,981.59/18,855.12
  6. Step 6: Final answer
    x = 18,700.38

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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.