Home / 11,530.40-17,317.44-7,178.24

Finding the Fourth Proportional to 11,530.40, 17,317.44 and 7,178.24

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Solution

The fourth proportional to 11,530.40, 17,317.44 and 7,178.24 is: 10,780.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,530.40 : 17,317.44 = 7,178.24 : x
  2. Step 2: Convert to fraction form
    11,530.40/17,317.44 = 7,178.24/x
  3. Step 3: Cross multiply
    11,530.40x = 17,317.44 × 7,178.24
  4. Step 4: Simplify right side
    11,530.40x = 124,308,740.51
  5. Step 5: Solve for x
    x = 124,308,740.51/11,530.40
  6. Step 6: Final answer
    x = 10,780.96

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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.