Home / 7,830.08-11,729.76-3,437.12

Finding the Fourth Proportional to 7,830.08, 11,729.76 and 3,437.12

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Solution

The fourth proportional to 7,830.08, 11,729.76 and 3,437.12 is: 5,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.08 : 11,729.76 = 3,437.12 : x
  2. Step 2: Convert to fraction form
    7,830.08/11,729.76 = 3,437.12/x
  3. Step 3: Cross multiply
    7,830.08x = 11,729.76 × 3,437.12
  4. Step 4: Simplify right side
    7,830.08x = 40,316,592.69
  5. Step 5: Solve for x
    x = 40,316,592.69/7,830.08
  6. Step 6: Final answer
    x = 5,148.94

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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.