Home / 10,569.60-15,854.40-2,778.39

Finding the Fourth Proportional to 10,569.60, 15,854.40 and 2,778.39

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Solution

The fourth proportional to 10,569.60, 15,854.40 and 2,778.39 is: 4,167.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,569.60 : 15,854.40 = 2,778.39 : x
  2. Step 2: Convert to fraction form
    10,569.60/15,854.40 = 2,778.39/x
  3. Step 3: Cross multiply
    10,569.60x = 15,854.40 × 2,778.39
  4. Step 4: Simplify right side
    10,569.60x = 44,049,706.42
  5. Step 5: Solve for x
    x = 44,049,706.42/10,569.60
  6. Step 6: Final answer
    x = 4,167.59

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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.