Home / 15,521.63-23,284.88-5,135.81

Finding the Fourth Proportional to 15,521.63, 23,284.88 and 5,135.81

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Solution

The fourth proportional to 15,521.63, 23,284.88 and 5,135.81 is: 7,704.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.63 : 23,284.88 = 5,135.81 : x
  2. Step 2: Convert to fraction form
    15,521.63/23,284.88 = 5,135.81/x
  3. Step 3: Cross multiply
    15,521.63x = 23,284.88 × 5,135.81
  4. Step 4: Simplify right side
    15,521.63x = 119,586,577.45
  5. Step 5: Solve for x
    x = 119,586,577.45/15,521.63
  6. Step 6: Final answer
    x = 7,704.51

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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.