Home / 14,134.77-21,219.44-6,645.51

Finding the Fourth Proportional to 14,134.77, 21,219.44 and 6,645.51

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Solution

The fourth proportional to 14,134.77, 21,219.44 and 6,645.51 is: 9,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.77 : 21,219.44 = 6,645.51 : x
  2. Step 2: Convert to fraction form
    14,134.77/21,219.44 = 6,645.51/x
  3. Step 3: Cross multiply
    14,134.77x = 21,219.44 × 6,645.51
  4. Step 4: Simplify right side
    14,134.77x = 141,013,967.49
  5. Step 5: Solve for x
    x = 141,013,967.49/14,134.77
  6. Step 6: Final answer
    x = 9,976.39

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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.