Home / 9,362.25-12,920.85-5,170.50

Finding the Fourth Proportional to 9,362.25, 12,920.85 and 5,170.50

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Solution

The fourth proportional to 9,362.25, 12,920.85 and 5,170.50 is: 7,135.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.25 : 12,920.85 = 5,170.50 : x
  2. Step 2: Convert to fraction form
    9,362.25/12,920.85 = 5,170.50/x
  3. Step 3: Cross multiply
    9,362.25x = 12,920.85 × 5,170.50
  4. Step 4: Simplify right side
    9,362.25x = 66,807,254.93
  5. Step 5: Solve for x
    x = 66,807,254.93/9,362.25
  6. Step 6: Final answer
    x = 7,135.81

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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.