Home / 13,410.66-20,100.18-4,640.78

Finding the Fourth Proportional to 13,410.66, 20,100.18 and 4,640.78

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Solution

The fourth proportional to 13,410.66, 20,100.18 and 4,640.78 is: 6,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.66 : 20,100.18 = 4,640.78 : x
  2. Step 2: Convert to fraction form
    13,410.66/20,100.18 = 4,640.78/x
  3. Step 3: Cross multiply
    13,410.66x = 20,100.18 × 4,640.78
  4. Step 4: Simplify right side
    13,410.66x = 93,280,513.34
  5. Step 5: Solve for x
    x = 93,280,513.34/13,410.66
  6. Step 6: Final answer
    x = 6,955.70

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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.