Home / 10,405.42-15,599.49-4,855.84

Finding the Fourth Proportional to 10,405.42, 15,599.49 and 4,855.84

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Solution

The fourth proportional to 10,405.42, 15,599.49 and 4,855.84 is: 7,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.42 : 15,599.49 = 4,855.84 : x
  2. Step 2: Convert to fraction form
    10,405.42/15,599.49 = 4,855.84/x
  3. Step 3: Cross multiply
    10,405.42x = 15,599.49 × 4,855.84
  4. Step 4: Simplify right side
    10,405.42x = 75,748,627.52
  5. Step 5: Solve for x
    x = 75,748,627.52/10,405.42
  6. Step 6: Final answer
    x = 7,279.73

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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.