Home / 14,361.48-21,439.23-12,492.81

Finding the Fourth Proportional to 14,361.48, 21,439.23 and 12,492.81

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Solution

The fourth proportional to 14,361.48, 21,439.23 and 12,492.81 is: 18,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361.48 : 21,439.23 = 12,492.81 : x
  2. Step 2: Convert to fraction form
    14,361.48/21,439.23 = 12,492.81/x
  3. Step 3: Cross multiply
    14,361.48x = 21,439.23 × 12,492.81
  4. Step 4: Simplify right side
    14,361.48x = 267,836,226.94
  5. Step 5: Solve for x
    x = 267,836,226.94/14,361.48
  6. Step 6: Final answer
    x = 18,649.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.