Home / 14,275.96-21,404.70-7,706.80

Finding the Fourth Proportional to 14,275.96, 21,404.70 and 7,706.80

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Solution

The fourth proportional to 14,275.96, 21,404.70 and 7,706.80 is: 11,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.96 : 21,404.70 = 7,706.80 : x
  2. Step 2: Convert to fraction form
    14,275.96/21,404.70 = 7,706.80/x
  3. Step 3: Cross multiply
    14,275.96x = 21,404.70 × 7,706.80
  4. Step 4: Simplify right side
    14,275.96x = 164,961,741.96
  5. Step 5: Solve for x
    x = 164,961,741.96/14,275.96
  6. Step 6: Final answer
    x = 11,555.21

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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.