Home / 10,911.30-16,352.55-9,672.90

Finding the Fourth Proportional to 10,911.30, 16,352.55 and 9,672.90

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Solution

The fourth proportional to 10,911.30, 16,352.55 and 9,672.90 is: 14,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.30 : 16,352.55 = 9,672.90 : x
  2. Step 2: Convert to fraction form
    10,911.30/16,352.55 = 9,672.90/x
  3. Step 3: Cross multiply
    10,911.30x = 16,352.55 × 9,672.90
  4. Step 4: Simplify right side
    10,911.30x = 158,176,580.90
  5. Step 5: Solve for x
    x = 158,176,580.90/10,911.30
  6. Step 6: Final answer
    x = 14,496.58

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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.