Home / 9,209.50-12,709.11-5,017.75

Finding the Fourth Proportional to 9,209.50, 12,709.11 and 5,017.75

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Solution

The fourth proportional to 9,209.50, 12,709.11 and 5,017.75 is: 6,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.50 : 12,709.11 = 5,017.75 : x
  2. Step 2: Convert to fraction form
    9,209.50/12,709.11 = 5,017.75/x
  3. Step 3: Cross multiply
    9,209.50x = 12,709.11 × 5,017.75
  4. Step 4: Simplify right side
    9,209.50x = 63,771,136.70
  5. Step 5: Solve for x
    x = 63,771,136.70/9,209.50
  6. Step 6: Final answer
    x = 6,924.50

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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.