Home / 10,181.12-15,279.84-5,506.40

Finding the Fourth Proportional to 10,181.12, 15,279.84 and 5,506.40

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Solution

The fourth proportional to 10,181.12, 15,279.84 and 5,506.40 is: 8,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.12 : 15,279.84 = 5,506.40 : x
  2. Step 2: Convert to fraction form
    10,181.12/15,279.84 = 5,506.40/x
  3. Step 3: Cross multiply
    10,181.12x = 15,279.84 × 5,506.40
  4. Step 4: Simplify right side
    10,181.12x = 84,136,910.98
  5. Step 5: Solve for x
    x = 84,136,910.98/10,181.12
  6. Step 6: Final answer
    x = 8,264.01

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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.