Home / 10,861.12-16,290.60-5,017.65

Finding the Fourth Proportional to 10,861.12, 16,290.60 and 5,017.65

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Solution

The fourth proportional to 10,861.12, 16,290.60 and 5,017.65 is: 7,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.12 : 16,290.60 = 5,017.65 : x
  2. Step 2: Convert to fraction form
    10,861.12/16,290.60 = 5,017.65/x
  3. Step 3: Cross multiply
    10,861.12x = 16,290.60 × 5,017.65
  4. Step 4: Simplify right side
    10,861.12x = 81,740,529.09
  5. Step 5: Solve for x
    x = 81,740,529.09/10,861.12
  6. Step 6: Final answer
    x = 7,525.98

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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.