Home / 9,206.96-12,705.60-5,015.21

Finding the Fourth Proportional to 9,206.96, 12,705.60 and 5,015.21

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Solution

The fourth proportional to 9,206.96, 12,705.60 and 5,015.21 is: 6,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.96 : 12,705.60 = 5,015.21 : x
  2. Step 2: Convert to fraction form
    9,206.96/12,705.60 = 5,015.21/x
  3. Step 3: Cross multiply
    9,206.96x = 12,705.60 × 5,015.21
  4. Step 4: Simplify right side
    9,206.96x = 63,721,188.65
  5. Step 5: Solve for x
    x = 63,721,188.65/9,206.96
  6. Step 6: Final answer
    x = 6,920.98

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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.