Home / 15,143.24-20,906.37-10,124.08

Finding the Fourth Proportional to 15,143.24, 20,906.37 and 10,124.08

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Solution

The fourth proportional to 15,143.24, 20,906.37 and 10,124.08 is: 13,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.24 : 20,906.37 = 10,124.08 : x
  2. Step 2: Convert to fraction form
    15,143.24/20,906.37 = 10,124.08/x
  3. Step 3: Cross multiply
    15,143.24x = 20,906.37 × 10,124.08
  4. Step 4: Simplify right side
    15,143.24x = 211,657,607.24
  5. Step 5: Solve for x
    x = 211,657,607.24/15,143.24
  6. Step 6: Final answer
    x = 13,977.04

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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.