Home / 8,907.04-12,278.08-6,665.52

Finding the Fourth Proportional to 8,907.04, 12,278.08 and 6,665.52

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Solution

The fourth proportional to 8,907.04, 12,278.08 and 6,665.52 is: 9,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.04 : 12,278.08 = 6,665.52 : x
  2. Step 2: Convert to fraction form
    8,907.04/12,278.08 = 6,665.52/x
  3. Step 3: Cross multiply
    8,907.04x = 12,278.08 × 6,665.52
  4. Step 4: Simplify right side
    8,907.04x = 81,839,787.80
  5. Step 5: Solve for x
    x = 81,839,787.80/8,907.04
  6. Step 6: Final answer
    x = 9,188.21

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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.