Home / 9,320.40-13,980.90-3,477.60

Finding the Fourth Proportional to 9,320.40, 13,980.90 and 3,477.60

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Solution

The fourth proportional to 9,320.40, 13,980.90 and 3,477.60 is: 5,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.40 : 13,980.90 = 3,477.60 : x
  2. Step 2: Convert to fraction form
    9,320.40/13,980.90 = 3,477.60/x
  3. Step 3: Cross multiply
    9,320.40x = 13,980.90 × 3,477.60
  4. Step 4: Simplify right side
    9,320.40x = 48,619,977.84
  5. Step 5: Solve for x
    x = 48,619,977.84/9,320.40
  6. Step 6: Final answer
    x = 5,216.51

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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.