Home / 12,075.87-18,116.25-4,285.29

Finding the Fourth Proportional to 12,075.87, 18,116.25 and 4,285.29

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Solution

The fourth proportional to 12,075.87, 18,116.25 and 4,285.29 is: 6,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.87 : 18,116.25 = 4,285.29 : x
  2. Step 2: Convert to fraction form
    12,075.87/18,116.25 = 4,285.29/x
  3. Step 3: Cross multiply
    12,075.87x = 18,116.25 × 4,285.29
  4. Step 4: Simplify right side
    12,075.87x = 77,633,384.96
  5. Step 5: Solve for x
    x = 77,633,384.96/12,075.87
  6. Step 6: Final answer
    x = 6,428.80

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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.