Home / 12,858.06-19,283.10-5,462.40

Finding the Fourth Proportional to 12,858.06, 19,283.10 and 5,462.40

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Solution

The fourth proportional to 12,858.06, 19,283.10 and 5,462.40 is: 8,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.06 : 19,283.10 = 5,462.40 : x
  2. Step 2: Convert to fraction form
    12,858.06/19,283.10 = 5,462.40/x
  3. Step 3: Cross multiply
    12,858.06x = 19,283.10 × 5,462.40
  4. Step 4: Simplify right side
    12,858.06x = 105,332,005.44
  5. Step 5: Solve for x
    x = 105,332,005.44/12,858.06
  6. Step 6: Final answer
    x = 8,191.90

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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.