Home / 15,536.70-21,440.68-8,463.15

Finding the Fourth Proportional to 15,536.70, 21,440.68 and 8,463.15

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Solution

The fourth proportional to 15,536.70, 21,440.68 and 8,463.15 is: 11,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.70 : 21,440.68 = 8,463.15 : x
  2. Step 2: Convert to fraction form
    15,536.70/21,440.68 = 8,463.15/x
  3. Step 3: Cross multiply
    15,536.70x = 21,440.68 × 8,463.15
  4. Step 4: Simplify right side
    15,536.70x = 181,455,690.94
  5. Step 5: Solve for x
    x = 181,455,690.94/15,536.70
  6. Step 6: Final answer
    x = 11,679.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.