Home / 13,411.03-20,116.55-4,177.75

Finding the Fourth Proportional to 13,411.03, 20,116.55 and 4,177.75

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Solution

The fourth proportional to 13,411.03, 20,116.55 and 4,177.75 is: 6,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.03 : 20,116.55 = 4,177.75 : x
  2. Step 2: Convert to fraction form
    13,411.03/20,116.55 = 4,177.75/x
  3. Step 3: Cross multiply
    13,411.03x = 20,116.55 × 4,177.75
  4. Step 4: Simplify right side
    13,411.03x = 84,041,916.76
  5. Step 5: Solve for x
    x = 84,041,916.76/13,411.03
  6. Step 6: Final answer
    x = 6,266.63

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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.