Home / 14,138.75-21,193.34-4,775.51

Finding the Fourth Proportional to 14,138.75, 21,193.34 and 4,775.51

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Solution

The fourth proportional to 14,138.75, 21,193.34 and 4,775.51 is: 7,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.75 : 21,193.34 = 4,775.51 : x
  2. Step 2: Convert to fraction form
    14,138.75/21,193.34 = 4,775.51/x
  3. Step 3: Cross multiply
    14,138.75x = 21,193.34 × 4,775.51
  4. Step 4: Simplify right side
    14,138.75x = 101,209,036.21
  5. Step 5: Solve for x
    x = 101,209,036.21/14,138.75
  6. Step 6: Final answer
    x = 7,158.27

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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.