Home / 8,787.06-12,130.09-5,604.64

Finding the Fourth Proportional to 8,787.06, 12,130.09 and 5,604.64

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Solution

The fourth proportional to 8,787.06, 12,130.09 and 5,604.64 is: 7,736.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.06 : 12,130.09 = 5,604.64 : x
  2. Step 2: Convert to fraction form
    8,787.06/12,130.09 = 5,604.64/x
  3. Step 3: Cross multiply
    8,787.06x = 12,130.09 × 5,604.64
  4. Step 4: Simplify right side
    8,787.06x = 67,984,743.28
  5. Step 5: Solve for x
    x = 67,984,743.28/8,787.06
  6. Step 6: Final answer
    x = 7,736.92

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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.