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Finding the Fourth Proportional to 9,779.62, 13,491.41 and 5,798.47

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Solution

The fourth proportional to 9,779.62, 13,491.41 and 5,798.47 is: 7,999.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.62 : 13,491.41 = 5,798.47 : x
  2. Step 2: Convert to fraction form
    9,779.62/13,491.41 = 5,798.47/x
  3. Step 3: Cross multiply
    9,779.62x = 13,491.41 × 5,798.47
  4. Step 4: Simplify right side
    9,779.62x = 78,229,473.42
  5. Step 5: Solve for x
    x = 78,229,473.42/9,779.62
  6. Step 6: Final answer
    x = 7,999.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.