Home / 12,254.23-16,910.31-7,218.67

Finding the Fourth Proportional to 12,254.23, 16,910.31 and 7,218.67

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Solution

The fourth proportional to 12,254.23, 16,910.31 and 7,218.67 is: 9,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.23 : 16,910.31 = 7,218.67 : x
  2. Step 2: Convert to fraction form
    12,254.23/16,910.31 = 7,218.67/x
  3. Step 3: Cross multiply
    12,254.23x = 16,910.31 × 7,218.67
  4. Step 4: Simplify right side
    12,254.23x = 122,069,947.49
  5. Step 5: Solve for x
    x = 122,069,947.49/12,254.23
  6. Step 6: Final answer
    x = 9,961.45

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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.