Home / 14,193.12-19,586.70-7,905.50

Finding the Fourth Proportional to 14,193.12, 19,586.70 and 7,905.50

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Solution

The fourth proportional to 14,193.12, 19,586.70 and 7,905.50 is: 10,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,193.12 : 19,586.70 = 7,905.50 : x
  2. Step 2: Convert to fraction form
    14,193.12/19,586.70 = 7,905.50/x
  3. Step 3: Cross multiply
    14,193.12x = 19,586.70 × 7,905.50
  4. Step 4: Simplify right side
    14,193.12x = 154,842,519.39
  5. Step 5: Solve for x
    x = 154,842,519.39/14,193.12
  6. Step 6: Final answer
    x = 10,909.69

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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.