Home / 13,550.90-20,326.55-4,785.89

Finding the Fourth Proportional to 13,550.90, 20,326.55 and 4,785.89

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Solution

The fourth proportional to 13,550.90, 20,326.55 and 4,785.89 is: 7,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.90 : 20,326.55 = 4,785.89 : x
  2. Step 2: Convert to fraction form
    13,550.90/20,326.55 = 4,785.89/x
  3. Step 3: Cross multiply
    13,550.90x = 20,326.55 × 4,785.89
  4. Step 4: Simplify right side
    13,550.90x = 97,280,506.82
  5. Step 5: Solve for x
    x = 97,280,506.82/13,550.90
  6. Step 6: Final answer
    x = 7,178.90

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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.