Home / 12,858.06-19,278.75-8,462.16

Finding the Fourth Proportional to 12,858.06, 19,278.75 and 8,462.16

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Solution

The fourth proportional to 12,858.06, 19,278.75 and 8,462.16 is: 12,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.06 : 19,278.75 = 8,462.16 : x
  2. Step 2: Convert to fraction form
    12,858.06/19,278.75 = 8,462.16/x
  3. Step 3: Cross multiply
    12,858.06x = 19,278.75 × 8,462.16
  4. Step 4: Simplify right side
    12,858.06x = 163,139,867.10
  5. Step 5: Solve for x
    x = 163,139,867.10/12,858.06
  6. Step 6: Final answer
    x = 12,687.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.