Home / 11,557.38-15,946.41-7,019.97

Finding the Fourth Proportional to 11,557.38, 15,946.41 and 7,019.97

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Solution

The fourth proportional to 11,557.38, 15,946.41 and 7,019.97 is: 9,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,557.38 : 15,946.41 = 7,019.97 : x
  2. Step 2: Convert to fraction form
    11,557.38/15,946.41 = 7,019.97/x
  3. Step 3: Cross multiply
    11,557.38x = 15,946.41 × 7,019.97
  4. Step 4: Simplify right side
    11,557.38x = 111,943,319.81
  5. Step 5: Solve for x
    x = 111,943,319.81/11,557.38
  6. Step 6: Final answer
    x = 9,685.87

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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.