Home / 12,884.36-17,783.90-7,580.88

Finding the Fourth Proportional to 12,884.36, 17,783.90 and 7,580.88

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Solution

The fourth proportional to 12,884.36, 17,783.90 and 7,580.88 is: 10,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.36 : 17,783.90 = 7,580.88 : x
  2. Step 2: Convert to fraction form
    12,884.36/17,783.90 = 7,580.88/x
  3. Step 3: Cross multiply
    12,884.36x = 17,783.90 × 7,580.88
  4. Step 4: Simplify right side
    12,884.36x = 134,817,573.93
  5. Step 5: Solve for x
    x = 134,817,573.93/12,884.36
  6. Step 6: Final answer
    x = 10,463.66

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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.