Home / 14,235.78-21,331.79-5,465.91

Finding the Fourth Proportional to 14,235.78, 21,331.79 and 5,465.91

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Solution

The fourth proportional to 14,235.78, 21,331.79 and 5,465.91 is: 8,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.78 : 21,331.79 = 5,465.91 : x
  2. Step 2: Convert to fraction form
    14,235.78/21,331.79 = 5,465.91/x
  3. Step 3: Cross multiply
    14,235.78x = 21,331.79 × 5,465.91
  4. Step 4: Simplify right side
    14,235.78x = 116,597,560.51
  5. Step 5: Solve for x
    x = 116,597,560.51/14,235.78
  6. Step 6: Final answer
    x = 8,190.46

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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.