Home / 9,117.70-13,660.35-7,465.30

Finding the Fourth Proportional to 9,117.70, 13,660.35 and 7,465.30

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Solution

The fourth proportional to 9,117.70, 13,660.35 and 7,465.30 is: 11,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.70 : 13,660.35 = 7,465.30 : x
  2. Step 2: Convert to fraction form
    9,117.70/13,660.35 = 7,465.30/x
  3. Step 3: Cross multiply
    9,117.70x = 13,660.35 × 7,465.30
  4. Step 4: Simplify right side
    9,117.70x = 101,978,610.86
  5. Step 5: Solve for x
    x = 101,978,610.86/9,117.70
  6. Step 6: Final answer
    x = 11,184.69

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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.