Home / 18,477.12-25,499.60-10,520.04

Finding the Fourth Proportional to 18,477.12, 25,499.60 and 10,520.04

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Solution

The fourth proportional to 18,477.12, 25,499.60 and 10,520.04 is: 14,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.12 : 25,499.60 = 10,520.04 : x
  2. Step 2: Convert to fraction form
    18,477.12/25,499.60 = 10,520.04/x
  3. Step 3: Cross multiply
    18,477.12x = 25,499.60 × 10,520.04
  4. Step 4: Simplify right side
    18,477.12x = 268,256,811.98
  5. Step 5: Solve for x
    x = 268,256,811.98/18,477.12
  6. Step 6: Final answer
    x = 14,518.32

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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.