Home / 13,648.77-20,455.87-6,630.39

Finding the Fourth Proportional to 13,648.77, 20,455.87 and 6,630.39

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Solution

The fourth proportional to 13,648.77, 20,455.87 and 6,630.39 is: 9,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.77 : 20,455.87 = 6,630.39 : x
  2. Step 2: Convert to fraction form
    13,648.77/20,455.87 = 6,630.39/x
  3. Step 3: Cross multiply
    13,648.77x = 20,455.87 × 6,630.39
  4. Step 4: Simplify right side
    13,648.77x = 135,630,395.89
  5. Step 5: Solve for x
    x = 135,630,395.89/13,648.77
  6. Step 6: Final answer
    x = 9,937.19

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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.