Home / 13,816.50-19,060.20-9,341.78

Finding the Fourth Proportional to 13,816.50, 19,060.20 and 9,341.78

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Solution

The fourth proportional to 13,816.50, 19,060.20 and 9,341.78 is: 12,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.50 : 19,060.20 = 9,341.78 : x
  2. Step 2: Convert to fraction form
    13,816.50/19,060.20 = 9,341.78/x
  3. Step 3: Cross multiply
    13,816.50x = 19,060.20 × 9,341.78
  4. Step 4: Simplify right side
    13,816.50x = 178,056,195.16
  5. Step 5: Solve for x
    x = 178,056,195.16/13,816.50
  6. Step 6: Final answer
    x = 12,887.21

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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.