Home / 13,513.89-20,271.91-4,750.77

Finding the Fourth Proportional to 13,513.89, 20,271.91 and 4,750.77

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Solution

The fourth proportional to 13,513.89, 20,271.91 and 4,750.77 is: 7,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.89 : 20,271.91 = 4,750.77 : x
  2. Step 2: Convert to fraction form
    13,513.89/20,271.91 = 4,750.77/x
  3. Step 3: Cross multiply
    13,513.89x = 20,271.91 × 4,750.77
  4. Step 4: Simplify right side
    13,513.89x = 96,307,181.87
  5. Step 5: Solve for x
    x = 96,307,181.87/13,513.89
  6. Step 6: Final answer
    x = 7,126.53

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1.5x scale

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.