Home / 19,611.60-29,410.20-6,464.40

Finding the Fourth Proportional to 19,611.60, 29,410.20 and 6,464.40

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Solution

The fourth proportional to 19,611.60, 29,410.20 and 6,464.40 is: 9,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.60 : 29,410.20 = 6,464.40 : x
  2. Step 2: Convert to fraction form
    19,611.60/29,410.20 = 6,464.40/x
  3. Step 3: Cross multiply
    19,611.60x = 29,410.20 × 6,464.40
  4. Step 4: Simplify right side
    19,611.60x = 190,119,296.88
  5. Step 5: Solve for x
    x = 190,119,296.88/19,611.60
  6. Step 6: Final answer
    x = 9,694.23

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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.