Home / 10,191.71-15,285.93-2,794.45

Finding the Fourth Proportional to 10,191.71, 15,285.93 and 2,794.45

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Solution

The fourth proportional to 10,191.71, 15,285.93 and 2,794.45 is: 4,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.71 : 15,285.93 = 2,794.45 : x
  2. Step 2: Convert to fraction form
    10,191.71/15,285.93 = 2,794.45/x
  3. Step 3: Cross multiply
    10,191.71x = 15,285.93 × 2,794.45
  4. Step 4: Simplify right side
    10,191.71x = 42,715,781.78
  5. Step 5: Solve for x
    x = 42,715,781.78/10,191.71
  6. Step 6: Final answer
    x = 4,191.23

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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.