Home / 15,558.72-21,471.60-8,844.63

Finding the Fourth Proportional to 15,558.72, 21,471.60 and 8,844.63

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Solution

The fourth proportional to 15,558.72, 21,471.60 and 8,844.63 is: 12,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.72 : 21,471.60 = 8,844.63 : x
  2. Step 2: Convert to fraction form
    15,558.72/21,471.60 = 8,844.63/x
  3. Step 3: Cross multiply
    15,558.72x = 21,471.60 × 8,844.63
  4. Step 4: Simplify right side
    15,558.72x = 189,908,357.51
  5. Step 5: Solve for x
    x = 189,908,357.51/15,558.72
  6. Step 6: Final answer
    x = 12,205.91

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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.