Home / 15,408.12-23,115.64-4,878.77

Finding the Fourth Proportional to 15,408.12, 23,115.64 and 4,878.77

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Solution

The fourth proportional to 15,408.12, 23,115.64 and 4,878.77 is: 7,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.12 : 23,115.64 = 4,878.77 : x
  2. Step 2: Convert to fraction form
    15,408.12/23,115.64 = 4,878.77/x
  3. Step 3: Cross multiply
    15,408.12x = 23,115.64 × 4,878.77
  4. Step 4: Simplify right side
    15,408.12x = 112,775,903.16
  5. Step 5: Solve for x
    x = 112,775,903.16/15,408.12
  6. Step 6: Final answer
    x = 7,319.25

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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.