Home / 12,559.40-18,817.26-7,617.32

Finding the Fourth Proportional to 12,559.40, 18,817.26 and 7,617.32

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Solution

The fourth proportional to 12,559.40, 18,817.26 and 7,617.32 is: 11,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.40 : 18,817.26 = 7,617.32 : x
  2. Step 2: Convert to fraction form
    12,559.40/18,817.26 = 7,617.32/x
  3. Step 3: Cross multiply
    12,559.40x = 18,817.26 × 7,617.32
  4. Step 4: Simplify right side
    12,559.40x = 143,337,090.94
  5. Step 5: Solve for x
    x = 143,337,090.94/12,559.40
  6. Step 6: Final answer
    x = 11,412.73

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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.