Home / 18,485.04-25,509.42-10,101.72

Finding the Fourth Proportional to 18,485.04, 25,509.42 and 10,101.72

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Solution

The fourth proportional to 18,485.04, 25,509.42 and 10,101.72 is: 13,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.04 : 25,509.42 = 10,101.72 : x
  2. Step 2: Convert to fraction form
    18,485.04/25,509.42 = 10,101.72/x
  3. Step 3: Cross multiply
    18,485.04x = 25,509.42 × 10,101.72
  4. Step 4: Simplify right side
    18,485.04x = 257,689,018.20
  5. Step 5: Solve for x
    x = 257,689,018.20/18,485.04
  6. Step 6: Final answer
    x = 13,940.41

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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.