Home / 13,217.51-19,820.50-5,003.75

Finding the Fourth Proportional to 13,217.51, 19,820.50 and 5,003.75

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Solution

The fourth proportional to 13,217.51, 19,820.50 and 5,003.75 is: 7,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.51 : 19,820.50 = 5,003.75 : x
  2. Step 2: Convert to fraction form
    13,217.51/19,820.50 = 5,003.75/x
  3. Step 3: Cross multiply
    13,217.51x = 19,820.50 × 5,003.75
  4. Step 4: Simplify right side
    13,217.51x = 99,176,826.88
  5. Step 5: Solve for x
    x = 99,176,826.88/13,217.51
  6. Step 6: Final answer
    x = 7,503.44

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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.