Home / 9,289.08-12,816.63-5,309.55

Finding the Fourth Proportional to 9,289.08, 12,816.63 and 5,309.55

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Solution

The fourth proportional to 9,289.08, 12,816.63 and 5,309.55 is: 7,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.08 : 12,816.63 = 5,309.55 : x
  2. Step 2: Convert to fraction form
    9,289.08/12,816.63 = 5,309.55/x
  3. Step 3: Cross multiply
    9,289.08x = 12,816.63 × 5,309.55
  4. Step 4: Simplify right side
    9,289.08x = 68,050,537.82
  5. Step 5: Solve for x
    x = 68,050,537.82/9,289.08
  6. Step 6: Final answer
    x = 7,325.86

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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.