Home / 10,519.22-15,778.84-4,282.63

Finding the Fourth Proportional to 10,519.22, 15,778.84 and 4,282.63

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Solution

The fourth proportional to 10,519.22, 15,778.84 and 4,282.63 is: 6,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.22 : 15,778.84 = 4,282.63 : x
  2. Step 2: Convert to fraction form
    10,519.22/15,778.84 = 4,282.63/x
  3. Step 3: Cross multiply
    10,519.22x = 15,778.84 × 4,282.63
  4. Step 4: Simplify right side
    10,519.22x = 67,574,883.40
  5. Step 5: Solve for x
    x = 67,574,883.40/10,519.22
  6. Step 6: Final answer
    x = 6,423.94

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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.