Home / 10,813.55-16,212.83-4,240.40

Finding the Fourth Proportional to 10,813.55, 16,212.83 and 4,240.40

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Solution

The fourth proportional to 10,813.55, 16,212.83 and 4,240.40 is: 6,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.55 : 16,212.83 = 4,240.40 : x
  2. Step 2: Convert to fraction form
    10,813.55/16,212.83 = 4,240.40/x
  3. Step 3: Cross multiply
    10,813.55x = 16,212.83 × 4,240.40
  4. Step 4: Simplify right side
    10,813.55x = 68,748,782.07
  5. Step 5: Solve for x
    x = 68,748,782.07/10,813.55
  6. Step 6: Final answer
    x = 6,357.65

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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.