Home / 10,955.30-16,418.55-9,716.90

Finding the Fourth Proportional to 10,955.30, 16,418.55 and 9,716.90

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Solution

The fourth proportional to 10,955.30, 16,418.55 and 9,716.90 is: 14,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.30 : 16,418.55 = 9,716.90 : x
  2. Step 2: Convert to fraction form
    10,955.30/16,418.55 = 9,716.90/x
  3. Step 3: Cross multiply
    10,955.30x = 16,418.55 × 9,716.90
  4. Step 4: Simplify right side
    10,955.30x = 159,537,408.50
  5. Step 5: Solve for x
    x = 159,537,408.50/10,955.30
  6. Step 6: Final answer
    x = 14,562.58

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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.