Home / 11,206.90-16,810.35-7,315.70

Finding the Fourth Proportional to 11,206.90, 16,810.35 and 7,315.70

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Solution

The fourth proportional to 11,206.90, 16,810.35 and 7,315.70 is: 10,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.90 : 16,810.35 = 7,315.70 : x
  2. Step 2: Convert to fraction form
    11,206.90/16,810.35 = 7,315.70/x
  3. Step 3: Cross multiply
    11,206.90x = 16,810.35 × 7,315.70
  4. Step 4: Simplify right side
    11,206.90x = 122,979,477.50
  5. Step 5: Solve for x
    x = 122,979,477.50/11,206.90
  6. Step 6: Final answer
    x = 10,973.55

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Similar ratio
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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.