Home / 14,247.18-21,376.40-5,479.74

Finding the Fourth Proportional to 14,247.18, 21,376.40 and 5,479.74

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Solution

The fourth proportional to 14,247.18, 21,376.40 and 5,479.74 is: 8,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.18 : 21,376.40 = 5,479.74 : x
  2. Step 2: Convert to fraction form
    14,247.18/21,376.40 = 5,479.74/x
  3. Step 3: Cross multiply
    14,247.18x = 21,376.40 × 5,479.74
  4. Step 4: Simplify right side
    14,247.18x = 117,137,086.74
  5. Step 5: Solve for x
    x = 117,137,086.74/14,247.18
  6. Step 6: Final answer
    x = 8,221.77

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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.