Home / 11,345.37-15,656.79-6,309.81

Finding the Fourth Proportional to 11,345.37, 15,656.79 and 6,309.81

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Solution

The fourth proportional to 11,345.37, 15,656.79 and 6,309.81 is: 8,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.37 : 15,656.79 = 6,309.81 : x
  2. Step 2: Convert to fraction form
    11,345.37/15,656.79 = 6,309.81/x
  3. Step 3: Cross multiply
    11,345.37x = 15,656.79 × 6,309.81
  4. Step 4: Simplify right side
    11,345.37x = 98,791,370.11
  5. Step 5: Solve for x
    x = 98,791,370.11/11,345.37
  6. Step 6: Final answer
    x = 8,707.64

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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.