Home / 13,267.48-19,900.20-7,717.28

Finding the Fourth Proportional to 13,267.48, 19,900.20 and 7,717.28

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Solution

The fourth proportional to 13,267.48, 19,900.20 and 7,717.28 is: 11,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.48 : 19,900.20 = 7,717.28 : x
  2. Step 2: Convert to fraction form
    13,267.48/19,900.20 = 7,717.28/x
  3. Step 3: Cross multiply
    13,267.48x = 19,900.20 × 7,717.28
  4. Step 4: Simplify right side
    13,267.48x = 153,575,415.46
  5. Step 5: Solve for x
    x = 153,575,415.46/13,267.48
  6. Step 6: Final answer
    x = 11,575.33

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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.