Home / 12,415.04-18,624.38-3,648.81

Finding the Fourth Proportional to 12,415.04, 18,624.38 and 3,648.81

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Solution

The fourth proportional to 12,415.04, 18,624.38 and 3,648.81 is: 5,473.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.04 : 18,624.38 = 3,648.81 : x
  2. Step 2: Convert to fraction form
    12,415.04/18,624.38 = 3,648.81/x
  3. Step 3: Cross multiply
    12,415.04x = 18,624.38 × 3,648.81
  4. Step 4: Simplify right side
    12,415.04x = 67,956,805.74
  5. Step 5: Solve for x
    x = 67,956,805.74/12,415.04
  6. Step 6: Final answer
    x = 5,473.75

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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.