Home / 9,177.68-12,665.20-4,985.92

Finding the Fourth Proportional to 9,177.68, 12,665.20 and 4,985.92

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Solution

The fourth proportional to 9,177.68, 12,665.20 and 4,985.92 is: 6,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.68 : 12,665.20 = 4,985.92 : x
  2. Step 2: Convert to fraction form
    9,177.68/12,665.20 = 4,985.92/x
  3. Step 3: Cross multiply
    9,177.68x = 12,665.20 × 4,985.92
  4. Step 4: Simplify right side
    9,177.68x = 63,147,673.98
  5. Step 5: Solve for x
    x = 63,147,673.98/9,177.68
  6. Step 6: Final answer
    x = 6,880.57

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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.