Home / 10,569.23-15,854.79-2,778.05

Finding the Fourth Proportional to 10,569.23, 15,854.79 and 2,778.05

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Solution

The fourth proportional to 10,569.23, 15,854.79 and 2,778.05 is: 4,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,569.23 : 15,854.79 = 2,778.05 : x
  2. Step 2: Convert to fraction form
    10,569.23/15,854.79 = 2,778.05/x
  3. Step 3: Cross multiply
    10,569.23x = 15,854.79 × 2,778.05
  4. Step 4: Simplify right side
    10,569.23x = 44,045,344.60
  5. Step 5: Solve for x
    x = 44,045,344.60/10,569.23
  6. Step 6: Final answer
    x = 4,167.32

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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.