Home / 12,539.61-17,306.87-8,559.27

Finding the Fourth Proportional to 12,539.61, 17,306.87 and 8,559.27

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Solution

The fourth proportional to 12,539.61, 17,306.87 and 8,559.27 is: 11,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.61 : 17,306.87 = 8,559.27 : x
  2. Step 2: Convert to fraction form
    12,539.61/17,306.87 = 8,559.27/x
  3. Step 3: Cross multiply
    12,539.61x = 17,306.87 × 8,559.27
  4. Step 4: Simplify right side
    12,539.61x = 148,134,130.39
  5. Step 5: Solve for x
    x = 148,134,130.39/12,539.61
  6. Step 6: Final answer
    x = 11,813.30

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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.