Home / 7,477.35-10,318.61-4,120.47

Finding the Fourth Proportional to 7,477.35, 10,318.61 and 4,120.47

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Solution

The fourth proportional to 7,477.35, 10,318.61 and 4,120.47 is: 5,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.35 : 10,318.61 = 4,120.47 : x
  2. Step 2: Convert to fraction form
    7,477.35/10,318.61 = 4,120.47/x
  3. Step 3: Cross multiply
    7,477.35x = 10,318.61 × 4,120.47
  4. Step 4: Simplify right side
    7,477.35x = 42,517,502.34
  5. Step 5: Solve for x
    x = 42,517,502.34/7,477.35
  6. Step 6: Final answer
    x = 5,686.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.