Home / 12,039.48-18,033.96-9,686.76

Finding the Fourth Proportional to 12,039.48, 18,033.96 and 9,686.76

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Solution

The fourth proportional to 12,039.48, 18,033.96 and 9,686.76 is: 14,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.48 : 18,033.96 = 9,686.76 : x
  2. Step 2: Convert to fraction form
    12,039.48/18,033.96 = 9,686.76/x
  3. Step 3: Cross multiply
    12,039.48x = 18,033.96 × 9,686.76
  4. Step 4: Simplify right side
    12,039.48x = 174,690,642.37
  5. Step 5: Solve for x
    x = 174,690,642.37/12,039.48
  6. Step 6: Final answer
    x = 14,509.82

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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.