Home / 8,787.84-12,127.41-4,808.95

Finding the Fourth Proportional to 8,787.84, 12,127.41 and 4,808.95

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Solution

The fourth proportional to 8,787.84, 12,127.41 and 4,808.95 is: 6,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.84 : 12,127.41 = 4,808.95 : x
  2. Step 2: Convert to fraction form
    8,787.84/12,127.41 = 4,808.95/x
  3. Step 3: Cross multiply
    8,787.84x = 12,127.41 × 4,808.95
  4. Step 4: Simplify right side
    8,787.84x = 58,320,108.32
  5. Step 5: Solve for x
    x = 58,320,108.32/8,787.84
  6. Step 6: Final answer
    x = 6,636.46

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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.