Home / 13,354.54-18,412.29-8,816.50

Finding the Fourth Proportional to 13,354.54, 18,412.29 and 8,816.50

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Solution

The fourth proportional to 13,354.54, 18,412.29 and 8,816.50 is: 12,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.54 : 18,412.29 = 8,816.50 : x
  2. Step 2: Convert to fraction form
    13,354.54/18,412.29 = 8,816.50/x
  3. Step 3: Cross multiply
    13,354.54x = 18,412.29 × 8,816.50
  4. Step 4: Simplify right side
    13,354.54x = 162,331,954.79
  5. Step 5: Solve for x
    x = 162,331,954.79/13,354.54
  6. Step 6: Final answer
    x = 12,155.56

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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.