Home / 9,139.48-13,674.66-8,586.52

Finding the Fourth Proportional to 9,139.48, 13,674.66 and 8,586.52

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Solution

The fourth proportional to 9,139.48, 13,674.66 and 8,586.52 is: 12,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.48 : 13,674.66 = 8,586.52 : x
  2. Step 2: Convert to fraction form
    9,139.48/13,674.66 = 8,586.52/x
  3. Step 3: Cross multiply
    9,139.48x = 13,674.66 × 8,586.52
  4. Step 4: Simplify right side
    9,139.48x = 117,417,741.58
  5. Step 5: Solve for x
    x = 117,417,741.58/9,139.48
  6. Step 6: Final answer
    x = 12,847.31

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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.