Home / 13,130.60-19,695.90-3,269.80

Finding the Fourth Proportional to 13,130.60, 19,695.90 and 3,269.80

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Solution

The fourth proportional to 13,130.60, 19,695.90 and 3,269.80 is: 4,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.60 : 19,695.90 = 3,269.80 : x
  2. Step 2: Convert to fraction form
    13,130.60/19,695.90 = 3,269.80/x
  3. Step 3: Cross multiply
    13,130.60x = 19,695.90 × 3,269.80
  4. Step 4: Simplify right side
    13,130.60x = 64,401,653.82
  5. Step 5: Solve for x
    x = 64,401,653.82/13,130.60
  6. Step 6: Final answer
    x = 4,904.70

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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.