Home / 12,400.60-17,112.90-7,095.64

Finding the Fourth Proportional to 12,400.60, 17,112.90 and 7,095.64

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Solution

The fourth proportional to 12,400.60, 17,112.90 and 7,095.64 is: 9,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.60 : 17,112.90 = 7,095.64 : x
  2. Step 2: Convert to fraction form
    12,400.60/17,112.90 = 7,095.64/x
  3. Step 3: Cross multiply
    12,400.60x = 17,112.90 × 7,095.64
  4. Step 4: Simplify right side
    12,400.60x = 121,426,977.76
  5. Step 5: Solve for x
    x = 121,426,977.76/12,400.60
  6. Step 6: Final answer
    x = 9,792.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.