Home / 13,703.06-20,521.47-7,841.90

Finding the Fourth Proportional to 13,703.06, 20,521.47 and 7,841.90

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Solution

The fourth proportional to 13,703.06, 20,521.47 and 7,841.90 is: 11,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.06 : 20,521.47 = 7,841.90 : x
  2. Step 2: Convert to fraction form
    13,703.06/20,521.47 = 7,841.90/x
  3. Step 3: Cross multiply
    13,703.06x = 20,521.47 × 7,841.90
  4. Step 4: Simplify right side
    13,703.06x = 160,927,315.59
  5. Step 5: Solve for x
    x = 160,927,315.59/13,703.06
  6. Step 6: Final answer
    x = 11,743.90

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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.