Home / 14,343.30-21,490.68-8,785.06

Finding the Fourth Proportional to 14,343.30, 21,490.68 and 8,785.06

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Solution

The fourth proportional to 14,343.30, 21,490.68 and 8,785.06 is: 13,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.30 : 21,490.68 = 8,785.06 : x
  2. Step 2: Convert to fraction form
    14,343.30/21,490.68 = 8,785.06/x
  3. Step 3: Cross multiply
    14,343.30x = 21,490.68 × 8,785.06
  4. Step 4: Simplify right side
    14,343.30x = 188,796,913.24
  5. Step 5: Solve for x
    x = 188,796,913.24/14,343.30
  6. Step 6: Final answer
    x = 13,162.72

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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.