Home / 12,365.90-18,529.40-9,561.59

Finding the Fourth Proportional to 12,365.90, 18,529.40 and 9,561.59

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Solution

The fourth proportional to 12,365.90, 18,529.40 and 9,561.59 is: 14,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.90 : 18,529.40 = 9,561.59 : x
  2. Step 2: Convert to fraction form
    12,365.90/18,529.40 = 9,561.59/x
  3. Step 3: Cross multiply
    12,365.90x = 18,529.40 × 9,561.59
  4. Step 4: Simplify right side
    12,365.90x = 177,170,472.70
  5. Step 5: Solve for x
    x = 177,170,472.70/12,365.90
  6. Step 6: Final answer
    x = 14,327.34

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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.