Home / 14,153.56-19,531.20-7,865.80

Finding the Fourth Proportional to 14,153.56, 19,531.20 and 7,865.80

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Solution

The fourth proportional to 14,153.56, 19,531.20 and 7,865.80 is: 10,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.56 : 19,531.20 = 7,865.80 : x
  2. Step 2: Convert to fraction form
    14,153.56/19,531.20 = 7,865.80/x
  3. Step 3: Cross multiply
    14,153.56x = 19,531.20 × 7,865.80
  4. Step 4: Simplify right side
    14,153.56x = 153,628,512.96
  5. Step 5: Solve for x
    x = 153,628,512.96/14,153.56
  6. Step 6: Final answer
    x = 10,854.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.