Home / 12,165.19-16,787.40-6,860.02

Finding the Fourth Proportional to 12,165.19, 16,787.40 and 6,860.02

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Solution

The fourth proportional to 12,165.19, 16,787.40 and 6,860.02 is: 9,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.19 : 16,787.40 = 6,860.02 : x
  2. Step 2: Convert to fraction form
    12,165.19/16,787.40 = 6,860.02/x
  3. Step 3: Cross multiply
    12,165.19x = 16,787.40 × 6,860.02
  4. Step 4: Simplify right side
    12,165.19x = 115,161,899.75
  5. Step 5: Solve for x
    x = 115,161,899.75/12,165.19
  6. Step 6: Final answer
    x = 9,466.51

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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.