Home / 14,001.99-21,005.03-5,117.76

Finding the Fourth Proportional to 14,001.99, 21,005.03 and 5,117.76

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Solution

The fourth proportional to 14,001.99, 21,005.03 and 5,117.76 is: 7,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.99 : 21,005.03 = 5,117.76 : x
  2. Step 2: Convert to fraction form
    14,001.99/21,005.03 = 5,117.76/x
  3. Step 3: Cross multiply
    14,001.99x = 21,005.03 × 5,117.76
  4. Step 4: Simplify right side
    14,001.99x = 107,498,702.33
  5. Step 5: Solve for x
    x = 107,498,702.33/14,001.99
  6. Step 6: Final answer
    x = 7,677.39

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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.