Home / 11,454.21-15,805.98-6,417.72

Finding the Fourth Proportional to 11,454.21, 15,805.98 and 6,417.72

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Solution

The fourth proportional to 11,454.21, 15,805.98 and 6,417.72 is: 8,855.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,454.21 : 15,805.98 = 6,417.72 : x
  2. Step 2: Convert to fraction form
    11,454.21/15,805.98 = 6,417.72/x
  3. Step 3: Cross multiply
    11,454.21x = 15,805.98 × 6,417.72
  4. Step 4: Simplify right side
    11,454.21x = 101,438,353.97
  5. Step 5: Solve for x
    x = 101,438,353.97/11,454.21
  6. Step 6: Final answer
    x = 8,855.99

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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.