Home / 12,343.64-18,515.50-2,983.64

Finding the Fourth Proportional to 12,343.64, 18,515.50 and 2,983.64

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Solution

The fourth proportional to 12,343.64, 18,515.50 and 2,983.64 is: 4,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.64 : 18,515.50 = 2,983.64 : x
  2. Step 2: Convert to fraction form
    12,343.64/18,515.50 = 2,983.64/x
  3. Step 3: Cross multiply
    12,343.64x = 18,515.50 × 2,983.64
  4. Step 4: Simplify right side
    12,343.64x = 55,243,586.42
  5. Step 5: Solve for x
    x = 55,243,586.42/12,343.64
  6. Step 6: Final answer
    x = 4,475.47

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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.