Home / 14,146.65-21,212.28-5,705.64

Finding the Fourth Proportional to 14,146.65, 21,212.28 and 5,705.64

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Solution

The fourth proportional to 14,146.65, 21,212.28 and 5,705.64 is: 8,555.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.65 : 21,212.28 = 5,705.64 : x
  2. Step 2: Convert to fraction form
    14,146.65/21,212.28 = 5,705.64/x
  3. Step 3: Cross multiply
    14,146.65x = 21,212.28 × 5,705.64
  4. Step 4: Simplify right side
    14,146.65x = 121,029,633.26
  5. Step 5: Solve for x
    x = 121,029,633.26/14,146.65
  6. Step 6: Final answer
    x = 8,555.36

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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.