Home / 13,513.61-20,271.49-4,750.49

Finding the Fourth Proportional to 13,513.61, 20,271.49 and 4,750.49

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Solution

The fourth proportional to 13,513.61, 20,271.49 and 4,750.49 is: 7,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.61 : 20,271.49 = 4,750.49 : x
  2. Step 2: Convert to fraction form
    13,513.61/20,271.49 = 4,750.49/x
  3. Step 3: Cross multiply
    13,513.61x = 20,271.49 × 4,750.49
  4. Step 4: Simplify right side
    13,513.61x = 96,299,397.30
  5. Step 5: Solve for x
    x = 96,299,397.30/13,513.61
  6. Step 6: Final answer
    x = 7,126.11

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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.