Home / 13,550.31-20,331.18-7,303.05

Finding the Fourth Proportional to 13,550.31, 20,331.18 and 7,303.05

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Solution

The fourth proportional to 13,550.31, 20,331.18 and 7,303.05 is: 10,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.31 : 20,331.18 = 7,303.05 : x
  2. Step 2: Convert to fraction form
    13,550.31/20,331.18 = 7,303.05/x
  3. Step 3: Cross multiply
    13,550.31x = 20,331.18 × 7,303.05
  4. Step 4: Simplify right side
    13,550.31x = 148,479,624.10
  5. Step 5: Solve for x
    x = 148,479,624.10/13,550.31
  6. Step 6: Final answer
    x = 10,957.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.