Home / 7,731.93-11,572.23-7,040.19

Finding the Fourth Proportional to 7,731.93, 11,572.23 and 7,040.19

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Solution

The fourth proportional to 7,731.93, 11,572.23 and 7,040.19 is: 10,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.93 : 11,572.23 = 7,040.19 : x
  2. Step 2: Convert to fraction form
    7,731.93/11,572.23 = 7,040.19/x
  3. Step 3: Cross multiply
    7,731.93x = 11,572.23 × 7,040.19
  4. Step 4: Simplify right side
    7,731.93x = 81,470,767.72
  5. Step 5: Solve for x
    x = 81,470,767.72/7,731.93
  6. Step 6: Final answer
    x = 10,536.92

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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.