Home / 10,543.37-15,814.51-3,147.89

Finding the Fourth Proportional to 10,543.37, 15,814.51 and 3,147.89

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Solution

The fourth proportional to 10,543.37, 15,814.51 and 3,147.89 is: 4,721.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.37 : 15,814.51 = 3,147.89 : x
  2. Step 2: Convert to fraction form
    10,543.37/15,814.51 = 3,147.89/x
  3. Step 3: Cross multiply
    10,543.37x = 15,814.51 × 3,147.89
  4. Step 4: Simplify right side
    10,543.37x = 49,782,243.07
  5. Step 5: Solve for x
    x = 49,782,243.07/10,543.37
  6. Step 6: Final answer
    x = 4,721.67

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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.