Home / 14,789.90-20,410.05-8,075.56

Finding the Fourth Proportional to 14,789.90, 20,410.05 and 8,075.56

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Solution

The fourth proportional to 14,789.90, 20,410.05 and 8,075.56 is: 11,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.90 : 20,410.05 = 8,075.56 : x
  2. Step 2: Convert to fraction form
    14,789.90/20,410.05 = 8,075.56/x
  3. Step 3: Cross multiply
    14,789.90x = 20,410.05 × 8,075.56
  4. Step 4: Simplify right side
    14,789.90x = 164,822,532.35
  5. Step 5: Solve for x
    x = 164,822,532.35/14,789.90
  6. Step 6: Final answer
    x = 11,144.26

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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.