Home / 7,023.81-9,691.56-4,039.77

Finding the Fourth Proportional to 7,023.81, 9,691.56 and 4,039.77

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Solution

The fourth proportional to 7,023.81, 9,691.56 and 4,039.77 is: 5,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.81 : 9,691.56 = 4,039.77 : x
  2. Step 2: Convert to fraction form
    7,023.81/9,691.56 = 4,039.77/x
  3. Step 3: Cross multiply
    7,023.81x = 9,691.56 × 4,039.77
  4. Step 4: Simplify right side
    7,023.81x = 39,151,673.34
  5. Step 5: Solve for x
    x = 39,151,673.34/7,023.81
  6. Step 6: Final answer
    x = 5,574.14

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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.