Home / 14,204.87-21,320.21-7,189.76

Finding the Fourth Proportional to 14,204.87, 21,320.21 and 7,189.76

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Solution

The fourth proportional to 14,204.87, 21,320.21 and 7,189.76 is: 10,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,204.87 : 21,320.21 = 7,189.76 : x
  2. Step 2: Convert to fraction form
    14,204.87/21,320.21 = 7,189.76/x
  3. Step 3: Cross multiply
    14,204.87x = 21,320.21 × 7,189.76
  4. Step 4: Simplify right side
    14,204.87x = 153,287,264.32
  5. Step 5: Solve for x
    x = 153,287,264.32/14,204.87
  6. Step 6: Final answer
    x = 10,791.18

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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.