Home / 7,934.93-11,908.37-5,430.12

Finding the Fourth Proportional to 7,934.93, 11,908.37 and 5,430.12

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Solution

The fourth proportional to 7,934.93, 11,908.37 and 5,430.12 is: 8,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.93 : 11,908.37 = 5,430.12 : x
  2. Step 2: Convert to fraction form
    7,934.93/11,908.37 = 5,430.12/x
  3. Step 3: Cross multiply
    7,934.93x = 11,908.37 × 5,430.12
  4. Step 4: Simplify right side
    7,934.93x = 64,663,878.10
  5. Step 5: Solve for x
    x = 64,663,878.10/7,934.93
  6. Step 6: Final answer
    x = 8,149.27

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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.