Home / 14,342.30-21,489.18-8,784.06

Finding the Fourth Proportional to 14,342.30, 21,489.18 and 8,784.06

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Solution

The fourth proportional to 14,342.30, 21,489.18 and 8,784.06 is: 13,161.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,342.30 : 21,489.18 = 8,784.06 : x
  2. Step 2: Convert to fraction form
    14,342.30/21,489.18 = 8,784.06/x
  3. Step 3: Cross multiply
    14,342.30x = 21,489.18 × 8,784.06
  4. Step 4: Simplify right side
    14,342.30x = 188,762,246.47
  5. Step 5: Solve for x
    x = 188,762,246.47/14,342.30
  6. Step 6: Final answer
    x = 13,161.23

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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.