Home / 14,215.45-21,315.62-4,352.08

Finding the Fourth Proportional to 14,215.45, 21,315.62 and 4,352.08

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Solution

The fourth proportional to 14,215.45, 21,315.62 and 4,352.08 is: 6,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.45 : 21,315.62 = 4,352.08 : x
  2. Step 2: Convert to fraction form
    14,215.45/21,315.62 = 4,352.08/x
  3. Step 3: Cross multiply
    14,215.45x = 21,315.62 × 4,352.08
  4. Step 4: Simplify right side
    14,215.45x = 92,767,176.91
  5. Step 5: Solve for x
    x = 92,767,176.91/14,215.45
  6. Step 6: Final answer
    x = 6,525.80

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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.