Home / 10,545.39-15,814.24-3,147.36

Finding the Fourth Proportional to 10,545.39, 15,814.24 and 3,147.36

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Solution

The fourth proportional to 10,545.39, 15,814.24 and 3,147.36 is: 4,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.39 : 15,814.24 = 3,147.36 : x
  2. Step 2: Convert to fraction form
    10,545.39/15,814.24 = 3,147.36/x
  3. Step 3: Cross multiply
    10,545.39x = 15,814.24 × 3,147.36
  4. Step 4: Simplify right side
    10,545.39x = 49,773,039.23
  5. Step 5: Solve for x
    x = 49,773,039.23/10,545.39
  6. Step 6: Final answer
    x = 4,719.89

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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.