Home / 12,914.14-19,345.41-9,915.58

Finding the Fourth Proportional to 12,914.14, 19,345.41 and 9,915.58

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Solution

The fourth proportional to 12,914.14, 19,345.41 and 9,915.58 is: 14,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.14 : 19,345.41 = 9,915.58 : x
  2. Step 2: Convert to fraction form
    12,914.14/19,345.41 = 9,915.58/x
  3. Step 3: Cross multiply
    12,914.14x = 19,345.41 × 9,915.58
  4. Step 4: Simplify right side
    12,914.14x = 191,820,960.49
  5. Step 5: Solve for x
    x = 191,820,960.49/12,914.14
  6. Step 6: Final answer
    x = 14,853.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.