Home / 9,369.86-12,929.96-5,121.14

Finding the Fourth Proportional to 9,369.86, 12,929.96 and 5,121.14

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Solution

The fourth proportional to 9,369.86, 12,929.96 and 5,121.14 is: 7,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.86 : 12,929.96 = 5,121.14 : x
  2. Step 2: Convert to fraction form
    9,369.86/12,929.96 = 5,121.14/x
  3. Step 3: Cross multiply
    9,369.86x = 12,929.96 × 5,121.14
  4. Step 4: Simplify right side
    9,369.86x = 66,216,083.51
  5. Step 5: Solve for x
    x = 66,216,083.51/9,369.86
  6. Step 6: Final answer
    x = 7,066.93

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1.5x scale

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.