Home / 15,471.15-21,358.94-10,698.09

Finding the Fourth Proportional to 15,471.15, 21,358.94 and 10,698.09

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Solution

The fourth proportional to 15,471.15, 21,358.94 and 10,698.09 is: 14,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.15 : 21,358.94 = 10,698.09 : x
  2. Step 2: Convert to fraction form
    15,471.15/21,358.94 = 10,698.09/x
  3. Step 3: Cross multiply
    15,471.15x = 21,358.94 × 10,698.09
  4. Step 4: Simplify right side
    15,471.15x = 228,499,808.93
  5. Step 5: Solve for x
    x = 228,499,808.93/15,471.15
  6. Step 6: Final answer
    x = 14,769.41

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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.