Home / 12,373.32-17,078.40-7,661.64

Finding the Fourth Proportional to 12,373.32, 17,078.40 and 7,661.64

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Solution

The fourth proportional to 12,373.32, 17,078.40 and 7,661.64 is: 10,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.32 : 17,078.40 = 7,661.64 : x
  2. Step 2: Convert to fraction form
    12,373.32/17,078.40 = 7,661.64/x
  3. Step 3: Cross multiply
    12,373.32x = 17,078.40 × 7,661.64
  4. Step 4: Simplify right side
    12,373.32x = 130,848,552.58
  5. Step 5: Solve for x
    x = 130,848,552.58/12,373.32
  6. Step 6: Final answer
    x = 10,575.06

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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.