Home / 14,740.40-20,340.60-9,150.32

Finding the Fourth Proportional to 14,740.40, 20,340.60 and 9,150.32

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Solution

The fourth proportional to 14,740.40, 20,340.60 and 9,150.32 is: 12,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.40 : 20,340.60 = 9,150.32 : x
  2. Step 2: Convert to fraction form
    14,740.40/20,340.60 = 9,150.32/x
  3. Step 3: Cross multiply
    14,740.40x = 20,340.60 × 9,150.32
  4. Step 4: Simplify right side
    14,740.40x = 186,122,998.99
  5. Step 5: Solve for x
    x = 186,122,998.99/14,740.40
  6. Step 6: Final answer
    x = 12,626.73

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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.