Home / 13,785.54-20,677.77-3,397.02

Finding the Fourth Proportional to 13,785.54, 20,677.77 and 3,397.02

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Solution

The fourth proportional to 13,785.54, 20,677.77 and 3,397.02 is: 5,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.54 : 20,677.77 = 3,397.02 : x
  2. Step 2: Convert to fraction form
    13,785.54/20,677.77 = 3,397.02/x
  3. Step 3: Cross multiply
    13,785.54x = 20,677.77 × 3,397.02
  4. Step 4: Simplify right side
    13,785.54x = 70,242,798.25
  5. Step 5: Solve for x
    x = 70,242,798.25/13,785.54
  6. Step 6: Final answer
    x = 5,095.40

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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.