Home / 10,545.78-15,818.55-3,150.30

Finding the Fourth Proportional to 10,545.78, 15,818.55 and 3,150.30

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Solution

The fourth proportional to 10,545.78, 15,818.55 and 3,150.30 is: 4,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.78 : 15,818.55 = 3,150.30 : x
  2. Step 2: Convert to fraction form
    10,545.78/15,818.55 = 3,150.30/x
  3. Step 3: Cross multiply
    10,545.78x = 15,818.55 × 3,150.30
  4. Step 4: Simplify right side
    10,545.78x = 49,833,178.07
  5. Step 5: Solve for x
    x = 49,833,178.07/10,545.78
  6. Step 6: Final answer
    x = 4,725.41

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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.