Home / 14,079.06-21,115.53-4,215.69

Finding the Fourth Proportional to 14,079.06, 21,115.53 and 4,215.69

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Solution

The fourth proportional to 14,079.06, 21,115.53 and 4,215.69 is: 6,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.06 : 21,115.53 = 4,215.69 : x
  2. Step 2: Convert to fraction form
    14,079.06/21,115.53 = 4,215.69/x
  3. Step 3: Cross multiply
    14,079.06x = 21,115.53 × 4,215.69
  4. Step 4: Simplify right side
    14,079.06x = 89,016,528.67
  5. Step 5: Solve for x
    x = 89,016,528.67/14,079.06
  6. Step 6: Final answer
    x = 6,322.62

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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.