Home / 13,219.11-19,828.67-7,710.91

Finding the Fourth Proportional to 13,219.11, 19,828.67 and 7,710.91

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Solution

The fourth proportional to 13,219.11, 19,828.67 and 7,710.91 is: 11,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.11 : 19,828.67 = 7,710.91 : x
  2. Step 2: Convert to fraction form
    13,219.11/19,828.67 = 7,710.91/x
  3. Step 3: Cross multiply
    13,219.11x = 19,828.67 × 7,710.91
  4. Step 4: Simplify right side
    13,219.11x = 152,897,001.66
  5. Step 5: Solve for x
    x = 152,897,001.66/13,219.11
  6. Step 6: Final answer
    x = 11,566.36

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Similar ratio
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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.