Home / 13,534.50-18,682.70-10,187.00

Finding the Fourth Proportional to 13,534.50, 18,682.70 and 10,187.00

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Solution

The fourth proportional to 13,534.50, 18,682.70 and 10,187.00 is: 14,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.50 : 18,682.70 = 10,187.00 : x
  2. Step 2: Convert to fraction form
    13,534.50/18,682.70 = 10,187.00/x
  3. Step 3: Cross multiply
    13,534.50x = 18,682.70 × 10,187.00
  4. Step 4: Simplify right side
    13,534.50x = 190,320,520.55
  5. Step 5: Solve for x
    x = 190,320,520.55/13,534.50
  6. Step 6: Final answer
    x = 14,061.88

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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.