Home / 15,703.57-21,672.26-10,678.94

Finding the Fourth Proportional to 15,703.57, 21,672.26 and 10,678.94

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Solution

The fourth proportional to 15,703.57, 21,672.26 and 10,678.94 is: 14,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.57 : 21,672.26 = 10,678.94 : x
  2. Step 2: Convert to fraction form
    15,703.57/21,672.26 = 10,678.94/x
  3. Step 3: Cross multiply
    15,703.57x = 21,672.26 × 10,678.94
  4. Step 4: Simplify right side
    15,703.57x = 231,436,723.77
  5. Step 5: Solve for x
    x = 231,436,723.77/15,703.57
  6. Step 6: Final answer
    x = 14,737.84

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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.