Home / 12,928.70-19,397.68-6,359.51

Finding the Fourth Proportional to 12,928.70, 19,397.68 and 6,359.51

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Solution

The fourth proportional to 12,928.70, 19,397.68 and 6,359.51 is: 9,541.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.70 : 19,397.68 = 6,359.51 : x
  2. Step 2: Convert to fraction form
    12,928.70/19,397.68 = 6,359.51/x
  3. Step 3: Cross multiply
    12,928.70x = 19,397.68 × 6,359.51
  4. Step 4: Simplify right side
    12,928.70x = 123,359,772.53
  5. Step 5: Solve for x
    x = 123,359,772.53/12,928.70
  6. Step 6: Final answer
    x = 9,541.54

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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.