Home / 12,159.06-16,787.43-7,913.58

Finding the Fourth Proportional to 12,159.06, 16,787.43 and 7,913.58

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Solution

The fourth proportional to 12,159.06, 16,787.43 and 7,913.58 is: 10,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.06 : 16,787.43 = 7,913.58 : x
  2. Step 2: Convert to fraction form
    12,159.06/16,787.43 = 7,913.58/x
  3. Step 3: Cross multiply
    12,159.06x = 16,787.43 × 7,913.58
  4. Step 4: Simplify right side
    12,159.06x = 132,848,670.30
  5. Step 5: Solve for x
    x = 132,848,670.30/12,159.06
  6. Step 6: Final answer
    x = 10,925.90

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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.