Home / 12,513.98-18,778.26-6,971.96

Finding the Fourth Proportional to 12,513.98, 18,778.26 and 6,971.96

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Solution

The fourth proportional to 12,513.98, 18,778.26 and 6,971.96 is: 10,462.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.98 : 18,778.26 = 6,971.96 : x
  2. Step 2: Convert to fraction form
    12,513.98/18,778.26 = 6,971.96/x
  3. Step 3: Cross multiply
    12,513.98x = 18,778.26 × 6,971.96
  4. Step 4: Simplify right side
    12,513.98x = 130,921,277.59
  5. Step 5: Solve for x
    x = 130,921,277.59/12,513.98
  6. Step 6: Final answer
    x = 10,462.00

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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.