Home / 9,394.86-12,935.37-7,975.74

Finding the Fourth Proportional to 9,394.86, 12,935.37 and 7,975.74

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Solution

The fourth proportional to 9,394.86, 12,935.37 and 7,975.74 is: 10,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.86 : 12,935.37 = 7,975.74 : x
  2. Step 2: Convert to fraction form
    9,394.86/12,935.37 = 7,975.74/x
  3. Step 3: Cross multiply
    9,394.86x = 12,935.37 × 7,975.74
  4. Step 4: Simplify right side
    9,394.86x = 103,169,147.92
  5. Step 5: Solve for x
    x = 103,169,147.92/9,394.86
  6. Step 6: Final answer
    x = 10,981.45

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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.