Home / 14,122.34-19,490.37-8,155.88

Finding the Fourth Proportional to 14,122.34, 19,490.37 and 8,155.88

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Solution

The fourth proportional to 14,122.34, 19,490.37 and 8,155.88 is: 11,256.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.34 : 19,490.37 = 8,155.88 : x
  2. Step 2: Convert to fraction form
    14,122.34/19,490.37 = 8,155.88/x
  3. Step 3: Cross multiply
    14,122.34x = 19,490.37 × 8,155.88
  4. Step 4: Simplify right side
    14,122.34x = 158,961,021.42
  5. Step 5: Solve for x
    x = 158,961,021.42/14,122.34
  6. Step 6: Final answer
    x = 11,256.00

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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.