Home / 7,465.60-11,197.14-2,128.40

Finding the Fourth Proportional to 7,465.60, 11,197.14 and 2,128.40

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Solution

The fourth proportional to 7,465.60, 11,197.14 and 2,128.40 is: 3,192.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,465.60 : 11,197.14 = 2,128.40 : x
  2. Step 2: Convert to fraction form
    7,465.60/11,197.14 = 2,128.40/x
  3. Step 3: Cross multiply
    7,465.60x = 11,197.14 × 2,128.40
  4. Step 4: Simplify right side
    7,465.60x = 23,831,992.78
  5. Step 5: Solve for x
    x = 23,831,992.78/7,465.60
  6. Step 6: Final answer
    x = 3,192.24

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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.