Home / 9,155.50-13,730.20-3,607.40

Finding the Fourth Proportional to 9,155.50, 13,730.20 and 3,607.40

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Solution

The fourth proportional to 9,155.50, 13,730.20 and 3,607.40 is: 5,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.50 : 13,730.20 = 3,607.40 : x
  2. Step 2: Convert to fraction form
    9,155.50/13,730.20 = 3,607.40/x
  3. Step 3: Cross multiply
    9,155.50x = 13,730.20 × 3,607.40
  4. Step 4: Simplify right side
    9,155.50x = 49,530,323.48
  5. Step 5: Solve for x
    x = 49,530,323.48/9,155.50
  6. Step 6: Final answer
    x = 5,409.90

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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.