Home / 10,529.71-15,780.86-4,282.44

Finding the Fourth Proportional to 10,529.71, 15,780.86 and 4,282.44

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Solution

The fourth proportional to 10,529.71, 15,780.86 and 4,282.44 is: 6,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.71 : 15,780.86 = 4,282.44 : x
  2. Step 2: Convert to fraction form
    10,529.71/15,780.86 = 4,282.44/x
  3. Step 3: Cross multiply
    10,529.71x = 15,780.86 × 4,282.44
  4. Step 4: Simplify right side
    10,529.71x = 67,580,586.10
  5. Step 5: Solve for x
    x = 67,580,586.10/10,529.71
  6. Step 6: Final answer
    x = 6,418.09

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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.