Home / 14,118.93-21,178.17-4,257.81

Finding the Fourth Proportional to 14,118.93, 21,178.17 and 4,257.81

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Solution

The fourth proportional to 14,118.93, 21,178.17 and 4,257.81 is: 6,386.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.93 : 21,178.17 = 4,257.81 : x
  2. Step 2: Convert to fraction form
    14,118.93/21,178.17 = 4,257.81/x
  3. Step 3: Cross multiply
    14,118.93x = 21,178.17 × 4,257.81
  4. Step 4: Simplify right side
    14,118.93x = 90,172,624.01
  5. Step 5: Solve for x
    x = 90,172,624.01/14,118.93
  6. Step 6: Final answer
    x = 6,386.65

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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.