Home / 14,235.20-19,644.59-7,947.58

Finding the Fourth Proportional to 14,235.20, 19,644.59 and 7,947.58

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Solution

The fourth proportional to 14,235.20, 19,644.59 and 7,947.58 is: 10,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.20 : 19,644.59 = 7,947.58 : x
  2. Step 2: Convert to fraction form
    14,235.20/19,644.59 = 7,947.58/x
  3. Step 3: Cross multiply
    14,235.20x = 19,644.59 × 7,947.58
  4. Step 4: Simplify right side
    14,235.20x = 156,126,921.35
  5. Step 5: Solve for x
    x = 156,126,921.35/14,235.20
  6. Step 6: Final answer
    x = 10,967.66

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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.