Home / 12,984.10-19,476.13-3,123.38

Finding the Fourth Proportional to 12,984.10, 19,476.13 and 3,123.38

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Solution

The fourth proportional to 12,984.10, 19,476.13 and 3,123.38 is: 4,685.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.10 : 19,476.13 = 3,123.38 : x
  2. Step 2: Convert to fraction form
    12,984.10/19,476.13 = 3,123.38/x
  3. Step 3: Cross multiply
    12,984.10x = 19,476.13 × 3,123.38
  4. Step 4: Simplify right side
    12,984.10x = 60,831,354.92
  5. Step 5: Solve for x
    x = 60,831,354.92/12,984.10
  6. Step 6: Final answer
    x = 4,685.07

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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.