Home / 15,579.95-21,500.24-8,506.44

Finding the Fourth Proportional to 15,579.95, 21,500.24 and 8,506.44

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Solution

The fourth proportional to 15,579.95, 21,500.24 and 8,506.44 is: 11,738.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.95 : 21,500.24 = 8,506.44 : x
  2. Step 2: Convert to fraction form
    15,579.95/21,500.24 = 8,506.44/x
  3. Step 3: Cross multiply
    15,579.95x = 21,500.24 × 8,506.44
  4. Step 4: Simplify right side
    15,579.95x = 182,890,459.01
  5. Step 5: Solve for x
    x = 182,890,459.01/15,579.95
  6. Step 6: Final answer
    x = 11,738.84

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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.