Home / 10,890.82-15,027.01-6,412.93

Finding the Fourth Proportional to 10,890.82, 15,027.01 and 6,412.93

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Solution

The fourth proportional to 10,890.82, 15,027.01 and 6,412.93 is: 8,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.82 : 15,027.01 = 6,412.93 : x
  2. Step 2: Convert to fraction form
    10,890.82/15,027.01 = 6,412.93/x
  3. Step 3: Cross multiply
    10,890.82x = 15,027.01 × 6,412.93
  4. Step 4: Simplify right side
    10,890.82x = 96,367,131.17
  5. Step 5: Solve for x
    x = 96,367,131.17/10,890.82
  6. Step 6: Final answer
    x = 8,848.48

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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.