Home / 18,840.24-25,985.52-13,175.28

Finding the Fourth Proportional to 18,840.24, 25,985.52 and 13,175.28

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Solution

The fourth proportional to 18,840.24, 25,985.52 and 13,175.28 is: 18,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.24 : 25,985.52 = 13,175.28 : x
  2. Step 2: Convert to fraction form
    18,840.24/25,985.52 = 13,175.28/x
  3. Step 3: Cross multiply
    18,840.24x = 25,985.52 × 13,175.28
  4. Step 4: Simplify right side
    18,840.24x = 342,366,501.95
  5. Step 5: Solve for x
    x = 342,366,501.95/18,840.24
  6. Step 6: Final answer
    x = 18,172.09

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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.