Home / 12,376.02-17,078.40-6,787.02

Finding the Fourth Proportional to 12,376.02, 17,078.40 and 6,787.02

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Solution

The fourth proportional to 12,376.02, 17,078.40 and 6,787.02 is: 9,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.02 : 17,078.40 = 6,787.02 : x
  2. Step 2: Convert to fraction form
    12,376.02/17,078.40 = 6,787.02/x
  3. Step 3: Cross multiply
    12,376.02x = 17,078.40 × 6,787.02
  4. Step 4: Simplify right side
    12,376.02x = 115,911,442.37
  5. Step 5: Solve for x
    x = 115,911,442.37/12,376.02
  6. Step 6: Final answer
    x = 9,365.81

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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.