Home / 9,369.35-12,929.76-5,120.36

Finding the Fourth Proportional to 9,369.35, 12,929.76 and 5,120.36

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Solution

The fourth proportional to 9,369.35, 12,929.76 and 5,120.36 is: 7,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.35 : 12,929.76 = 5,120.36 : x
  2. Step 2: Convert to fraction form
    9,369.35/12,929.76 = 5,120.36/x
  3. Step 3: Cross multiply
    9,369.35x = 12,929.76 × 5,120.36
  4. Step 4: Simplify right side
    9,369.35x = 66,205,025.91
  5. Step 5: Solve for x
    x = 66,205,025.91/9,369.35
  6. Step 6: Final answer
    x = 7,066.13

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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.