Home / 14,479.89-21,721.55-4,615.71

Finding the Fourth Proportional to 14,479.89, 21,721.55 and 4,615.71

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Solution

The fourth proportional to 14,479.89, 21,721.55 and 4,615.71 is: 6,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.89 : 21,721.55 = 4,615.71 : x
  2. Step 2: Convert to fraction form
    14,479.89/21,721.55 = 4,615.71/x
  3. Step 3: Cross multiply
    14,479.89x = 21,721.55 × 4,615.71
  4. Step 4: Simplify right side
    14,479.89x = 100,260,352.47
  5. Step 5: Solve for x
    x = 100,260,352.47/14,479.89
  6. Step 6: Final answer
    x = 6,924.11

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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.