Home / 9,117.19-13,666.21-5,163.51

Finding the Fourth Proportional to 9,117.19, 13,666.21 and 5,163.51

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Solution

The fourth proportional to 9,117.19, 13,666.21 and 5,163.51 is: 7,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.19 : 13,666.21 = 5,163.51 : x
  2. Step 2: Convert to fraction form
    9,117.19/13,666.21 = 5,163.51/x
  3. Step 3: Cross multiply
    9,117.19x = 13,666.21 × 5,163.51
  4. Step 4: Simplify right side
    9,117.19x = 70,565,612.00
  5. Step 5: Solve for x
    x = 70,565,612.00/9,117.19
  6. Step 6: Final answer
    x = 7,739.84

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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.