Home / 18,477.36-25,500.78-10,518.30

Finding the Fourth Proportional to 18,477.36, 25,500.78 and 10,518.30

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Solution

The fourth proportional to 18,477.36, 25,500.78 and 10,518.30 is: 14,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.36 : 25,500.78 = 10,518.30 : x
  2. Step 2: Convert to fraction form
    18,477.36/25,500.78 = 10,518.30/x
  3. Step 3: Cross multiply
    18,477.36x = 25,500.78 × 10,518.30
  4. Step 4: Simplify right side
    18,477.36x = 268,224,854.27
  5. Step 5: Solve for x
    x = 268,224,854.27/18,477.36
  6. Step 6: Final answer
    x = 14,516.41

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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.