Home / 13,500.19-18,635.04-8,901.34

Finding the Fourth Proportional to 13,500.19, 18,635.04 and 8,901.34

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Solution

The fourth proportional to 13,500.19, 18,635.04 and 8,901.34 is: 12,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.19 : 18,635.04 = 8,901.34 : x
  2. Step 2: Convert to fraction form
    13,500.19/18,635.04 = 8,901.34/x
  3. Step 3: Cross multiply
    13,500.19x = 18,635.04 × 8,901.34
  4. Step 4: Simplify right side
    13,500.19x = 165,876,860.15
  5. Step 5: Solve for x
    x = 165,876,860.15/13,500.19
  6. Step 6: Final answer
    x = 12,287.00

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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.