Home / 10,513.19-15,762.49-4,961.86

Finding the Fourth Proportional to 10,513.19, 15,762.49 and 4,961.86

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Solution

The fourth proportional to 10,513.19, 15,762.49 and 4,961.86 is: 7,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.19 : 15,762.49 = 4,961.86 : x
  2. Step 2: Convert to fraction form
    10,513.19/15,762.49 = 4,961.86/x
  3. Step 3: Cross multiply
    10,513.19x = 15,762.49 × 4,961.86
  4. Step 4: Simplify right side
    10,513.19x = 78,211,268.63
  5. Step 5: Solve for x
    x = 78,211,268.63/10,513.19
  6. Step 6: Final answer
    x = 7,439.35

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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.