Home / 15,837.04-21,855.14-8,667.64

Finding the Fourth Proportional to 15,837.04, 21,855.14 and 8,667.64

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Solution

The fourth proportional to 15,837.04, 21,855.14 and 8,667.64 is: 11,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.04 : 21,855.14 = 8,667.64 : x
  2. Step 2: Convert to fraction form
    15,837.04/21,855.14 = 8,667.64/x
  3. Step 3: Cross multiply
    15,837.04x = 21,855.14 × 8,667.64
  4. Step 4: Simplify right side
    15,837.04x = 189,432,485.67
  5. Step 5: Solve for x
    x = 189,432,485.67/15,837.04
  6. Step 6: Final answer
    x = 11,961.36

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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.