Home / 14,525.78-21,781.38-6,740.06

Finding the Fourth Proportional to 14,525.78, 21,781.38 and 6,740.06

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Solution

The fourth proportional to 14,525.78, 21,781.38 and 6,740.06 is: 10,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,525.78 : 21,781.38 = 6,740.06 : x
  2. Step 2: Convert to fraction form
    14,525.78/21,781.38 = 6,740.06/x
  3. Step 3: Cross multiply
    14,525.78x = 21,781.38 × 6,740.06
  4. Step 4: Simplify right side
    14,525.78x = 146,807,808.08
  5. Step 5: Solve for x
    x = 146,807,808.08/14,525.78
  6. Step 6: Final answer
    x = 10,106.71

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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.