Home / 13,269.02-18,303.64-8,292.38

Finding the Fourth Proportional to 13,269.02, 18,303.64 and 8,292.38

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Solution

The fourth proportional to 13,269.02, 18,303.64 and 8,292.38 is: 11,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.02 : 18,303.64 = 8,292.38 : x
  2. Step 2: Convert to fraction form
    13,269.02/18,303.64 = 8,292.38/x
  3. Step 3: Cross multiply
    13,269.02x = 18,303.64 × 8,292.38
  4. Step 4: Simplify right side
    13,269.02x = 151,780,626.01
  5. Step 5: Solve for x
    x = 151,780,626.01/13,269.02
  6. Step 6: Final answer
    x = 11,438.73

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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.