Home / 9,642.53-13,295.79-6,660.51

Finding the Fourth Proportional to 9,642.53, 13,295.79 and 6,660.51

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Solution

The fourth proportional to 9,642.53, 13,295.79 and 6,660.51 is: 9,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642.53 : 13,295.79 = 6,660.51 : x
  2. Step 2: Convert to fraction form
    9,642.53/13,295.79 = 6,660.51/x
  3. Step 3: Cross multiply
    9,642.53x = 13,295.79 × 6,660.51
  4. Step 4: Simplify right side
    9,642.53x = 88,556,742.25
  5. Step 5: Solve for x
    x = 88,556,742.25/9,642.53
  6. Step 6: Final answer
    x = 9,183.98

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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.