Home / 9,854.78-13,610.90-7,177.92

Finding the Fourth Proportional to 9,854.78, 13,610.90 and 7,177.92

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Solution

The fourth proportional to 9,854.78, 13,610.90 and 7,177.92 is: 9,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.78 : 13,610.90 = 7,177.92 : x
  2. Step 2: Convert to fraction form
    9,854.78/13,610.90 = 7,177.92/x
  3. Step 3: Cross multiply
    9,854.78x = 13,610.90 × 7,177.92
  4. Step 4: Simplify right side
    9,854.78x = 97,697,918.23
  5. Step 5: Solve for x
    x = 97,697,918.23/9,854.78
  6. Step 6: Final answer
    x = 9,913.76

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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.