Home / 12,549.84-18,817.38-4,759.20

Finding the Fourth Proportional to 12,549.84, 18,817.38 and 4,759.20

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Solution

The fourth proportional to 12,549.84, 18,817.38 and 4,759.20 is: 7,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.84 : 18,817.38 = 4,759.20 : x
  2. Step 2: Convert to fraction form
    12,549.84/18,817.38 = 4,759.20/x
  3. Step 3: Cross multiply
    12,549.84x = 18,817.38 × 4,759.20
  4. Step 4: Simplify right side
    12,549.84x = 89,555,674.90
  5. Step 5: Solve for x
    x = 89,555,674.90/12,549.84
  6. Step 6: Final answer
    x = 7,136.00

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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.