Home / 9,521.39-13,135.45-5,742.41

Finding the Fourth Proportional to 9,521.39, 13,135.45 and 5,742.41

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Solution

The fourth proportional to 9,521.39, 13,135.45 and 5,742.41 is: 7,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.39 : 13,135.45 = 5,742.41 : x
  2. Step 2: Convert to fraction form
    9,521.39/13,135.45 = 5,742.41/x
  3. Step 3: Cross multiply
    9,521.39x = 13,135.45 × 5,742.41
  4. Step 4: Simplify right side
    9,521.39x = 75,429,045.05
  5. Step 5: Solve for x
    x = 75,429,045.05/9,521.39
  6. Step 6: Final answer
    x = 7,922.06

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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.