Home / 12,744.20-19,095.51-7,803.47

Finding the Fourth Proportional to 12,744.20, 19,095.51 and 7,803.47

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Solution

The fourth proportional to 12,744.20, 19,095.51 and 7,803.47 is: 11,692.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.20 : 19,095.51 = 7,803.47 : x
  2. Step 2: Convert to fraction form
    12,744.20/19,095.51 = 7,803.47/x
  3. Step 3: Cross multiply
    12,744.20x = 19,095.51 × 7,803.47
  4. Step 4: Simplify right side
    12,744.20x = 149,011,239.42
  5. Step 5: Solve for x
    x = 149,011,239.42/12,744.20
  6. Step 6: Final answer
    x = 11,692.47

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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.