Home / 7,681.86-10,608.84-6,617.52

Finding the Fourth Proportional to 7,681.86, 10,608.84 and 6,617.52

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Solution

The fourth proportional to 7,681.86, 10,608.84 and 6,617.52 is: 9,138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.86 : 10,608.84 = 6,617.52 : x
  2. Step 2: Convert to fraction form
    7,681.86/10,608.84 = 6,617.52/x
  3. Step 3: Cross multiply
    7,681.86x = 10,608.84 × 6,617.52
  4. Step 4: Simplify right side
    7,681.86x = 70,204,210.88
  5. Step 5: Solve for x
    x = 70,204,210.88/7,681.86
  6. Step 6: Final answer
    x = 9,138.96

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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.