Home / 12,740.28-19,115.46-4,951.32

Finding the Fourth Proportional to 12,740.28, 19,115.46 and 4,951.32

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Solution

The fourth proportional to 12,740.28, 19,115.46 and 4,951.32 is: 7,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.28 : 19,115.46 = 4,951.32 : x
  2. Step 2: Convert to fraction form
    12,740.28/19,115.46 = 4,951.32/x
  3. Step 3: Cross multiply
    12,740.28x = 19,115.46 × 4,951.32
  4. Step 4: Simplify right side
    12,740.28x = 94,646,759.41
  5. Step 5: Solve for x
    x = 94,646,759.41/12,740.28
  6. Step 6: Final answer
    x = 7,428.94

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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.