Home / 12,303.40-18,440.52-9,372.64

Finding the Fourth Proportional to 12,303.40, 18,440.52 and 9,372.64

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Solution

The fourth proportional to 12,303.40, 18,440.52 and 9,372.64 is: 14,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.40 : 18,440.52 = 9,372.64 : x
  2. Step 2: Convert to fraction form
    12,303.40/18,440.52 = 9,372.64/x
  3. Step 3: Cross multiply
    12,303.40x = 18,440.52 × 9,372.64
  4. Step 4: Simplify right side
    12,303.40x = 172,836,355.37
  5. Step 5: Solve for x
    x = 172,836,355.37/12,303.40
  6. Step 6: Final answer
    x = 14,047.85

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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.