Home / 15,558.02-21,474.16-8,847.58

Finding the Fourth Proportional to 15,558.02, 21,474.16 and 8,847.58

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Solution

The fourth proportional to 15,558.02, 21,474.16 and 8,847.58 is: 12,211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.02 : 21,474.16 = 8,847.58 : x
  2. Step 2: Convert to fraction form
    15,558.02/21,474.16 = 8,847.58/x
  3. Step 3: Cross multiply
    15,558.02x = 21,474.16 × 8,847.58
  4. Step 4: Simplify right side
    15,558.02x = 189,994,348.53
  5. Step 5: Solve for x
    x = 189,994,348.53/15,558.02
  6. Step 6: Final answer
    x = 12,211.99

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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.