Home / 12,511.98-18,775.26-6,969.96

Finding the Fourth Proportional to 12,511.98, 18,775.26 and 6,969.96

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Solution

The fourth proportional to 12,511.98, 18,775.26 and 6,969.96 is: 10,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.98 : 18,775.26 = 6,969.96 : x
  2. Step 2: Convert to fraction form
    12,511.98/18,775.26 = 6,969.96/x
  3. Step 3: Cross multiply
    12,511.98x = 18,775.26 × 6,969.96
  4. Step 4: Simplify right side
    12,511.98x = 130,862,811.19
  5. Step 5: Solve for x
    x = 130,862,811.19/12,511.98
  6. Step 6: Final answer
    x = 10,459.00

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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.