Home / 12,411.90-18,606.78-4,615.38

Finding the Fourth Proportional to 12,411.90, 18,606.78 and 4,615.38

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Solution

The fourth proportional to 12,411.90, 18,606.78 and 4,615.38 is: 6,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.90 : 18,606.78 = 4,615.38 : x
  2. Step 2: Convert to fraction form
    12,411.90/18,606.78 = 4,615.38/x
  3. Step 3: Cross multiply
    12,411.90x = 18,606.78 × 4,615.38
  4. Step 4: Simplify right side
    12,411.90x = 85,877,360.28
  5. Step 5: Solve for x
    x = 85,877,360.28/12,411.90
  6. Step 6: Final answer
    x = 6,918.95

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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.